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Problem Statement: When you get a template and try to open in Window 7, 64 bit, you see the cell formula including the Report Writer (RW) file AspenRpt.xla and its path, such as 'C:\PROGRA~2\MICROS~2\Office14\Library\!AspenRpt.xla'. The template does not resolve all the formulas? How can we remove it? | Solution: In Excel, open window Trust Center from File | Options | Trust Center -> 'Trust Center Settings ...', then select Trusted Locations from the left. Check the box on the bottom for 'Allow Trusted Locations on my network'.
Close Excel. and reopen it. The whole path in the cell will be removed. And you can go back to the Trusted Center' to uncheck this locations as this is not recommended to be checked.
Keywords: path
ReportRpt.xla
Trust
Trust Center
References: None |
Problem Statement: When running reports, I receive error messages with the Icarus_User.mdb file and a Crystal Reports Database error.
Some of the messages are: Error 3044 - Icarus_User.mdb is not a valid path - Import | Solution: This problem occurs when you are using the Icarus_User.mdb file in order to create your own custom reports (see otherSolution document referring to custom reports: http://support.aspentech.com/webteamcgi/SolutionDisplay_view.cgi?key=113318).
With v2006 of the Icarus software, there was a change made with directory locations of the Icarus_User.mdb file and the UserTemplates.xls file. Both these files (the Icarus_User.mdb file and the UserTemplates.xls file) are used in conjunction with each other and are essential in creating and running custom reports successfully without errors.
Since the directories have changed for the Icarus_User.mdb file and the UserTemplates.xls file, it is vital that these files are copied from the previous version of your Icarus software to the new version of your Icarus software.
The UserTemplates.xls file contains references to Named Ranges. These Named Ranges are used for query results to create the reports. If this named range does not exist in one of the UserTemplates.xls files, the report won?t run and it will result in error messages. The report also won't run and will result in error messages if all the files are not located in the new directories.
If you were using these reports in a previous version of the Icarus software, and the reports ran sucessfully but won't work in the new installation of the Icarus software, it is very likely that the Icarus_User.mdb and the UserTemplates.xls files were not copied to the new folder locations for the new installation.
To have custom reports work for v2006
1. The directory location has changed for the Icarus_User.mdb file. The NEW location for this file is the c:\Program Files\AspenTech\Aspen Icarus 2006\Data\Reporter\Database folder.
Be sure to copy the Icarus_User.mdb file from your previous version c:\Program Files\AspenTech\Aspen Icarus 2004.2\ic_cache\Reporter\Database to the new directory in v2006: c:\Program Files\AspenTech\Aspen Icarus 2006\Data\Reporter\Database.
2. The default location for the Excel templates in v2006 is located in the c:\Program Files\AspenTech\Aspen Icarus 2006\Data\Reporter\Templates folder.
Be sure to copy the all the excel templates from your previous version c:\Program Files\AspenTech\Aspen Icarus 2004.2\ic_cache\Reporter\Templates to the new directory in v2006: c:\Program Files\AspenTech\Aspen Icarus 2006\Data\Reporter\Database.
If your files are placed in the correct folders, and you are still having problems, please check to make sure that your operating system is completely up-to-date with the latest Microsoft Windows Patches, that MDAC 2.8 is installed and that Microsoft Jet 4.0 is installed.
Keywords: Icarus_User.mdb, reference table, import, 3044, templates, named range, patch, valid path, query, table, microsoft jet, ODBC, microsoft access driver, invalid, aspen icarus reporter, project path, project location does not exist, import error
References: Tables Error, and ODBC errors like the ones below.
How do I fix this problem so that I can run my reports? |
Problem Statement: How are nuts and bolts generated by the Aspen Icarus software? | Solution: Bolt and nut sizes are determined by ASME code (and by BIS/JIS/DIN codes, but they are all copies of ASME code, except for DIN code in some diameters).
Those bolt sizes and quantities are tabulated by Pipe diameter and flange rating and included within the evaluation engine.
For example, below is one of those tables. (Similar tables are found in the pipe flanges and fittings document of ASME/ANSI B16.5).
EXAMPLE:
Full Face Gaskets for 150 lb ASME/ANSI Pipe Flanges
Pipe Diameter
Bolt Diameter
Number of Bolts
0.5 inch/15 mm
0.5 inch/15 mm
4
0.75 inch/20 mm
0.5 inch/15 mm
4
1 inch/25 mm
0.5 inch/15 mm
4
1.25 inch/32 mm
0.5 inch/15 mm
4
1.5 inch/40 mm
0.5 inch/15 mm
4
2 inch/50 mm
0.625 inch/15.875 mm
4
2.5 inch/65 mm
0.625 inch/15.875 mm
4
3 inch/80 mm
0.625 inch/15.875 mm
4
3.5 inch/90 mm
0.625 inch/15.875 mm
8
4 inch/100 mm
0.625 inch/15.875 mm
8
5 inch/125 mm
0.75 inch/20 mm
8
6 inch/150 mm
0.75 inch/20 mm
8
8 inch/200 mm
0.75 inch/20 mm
8
10 inch/250 mm
0.875 inch/22.225 mm
12
12 inch/300 mm
0.875 inch/22.225 mm
12
14 inch/350 mm
1 inch/25 mm
12
16 inch/400 mm
1 inch/25 mm
16
18 inch/450 mm
1.125 inch/28.575 mm
16
20 inch/500 mm
1.125 inch/28.575 mm
20
24 inch/600 mm
1.125 inch/28.575 mm
20
30 inch/750 mm
1.125 inch/28.575 mm
28
36 inch/900 mm
1.5 inch/40 mm
32
42 inch/1050 mm
1.5 inch/40 mm
36
48 inch/1200 mm
1.5 inch/40 mm
44
54 inch/1350 mm
1.75 inch/44.45mm
44
60 inch/ 1500 mm
1.5 inch/40 mm
48
72 inch/1800 mm
1.5 inch/40 mm
48
For example, a 4 inch Diameter Pipe will need 8 (0.625 inch diameter) bolts.
Keywords: nuts, bolts, nut, bolt, generated, sized, size
References: None |
Problem Statement: How to configure Aspen Demand Manager forecast by date? | Solution: AspenTech strongly discourages using days to forecast. It is too detailed a level to get good statistical forecasts and it can quickly blow up the size of the application so that it cannot run in memory.
Typically, when a Demand Manager application needs to deal with days, it is either
1. Simply for outputting data to another system (this can be done by selecting days when creating the Demand Plan for export and does not require daily time periods) or
2. For overriding the forecast in the very short time horizon (i.e. one month out), in which case only the first future month would be set to days.
Technically it is possible to configure a model to have all daily periods and to forecast daily, but again this is discouraged.
To do so, Configure Time Periods would be set up like in the following picture, where Number of months of history as days would equal the total number of historical months, Number of months out to forecast as days would equal the total number of months in the future, and Period advance frequency/forecasting periods would be set to DAY.
Keywords: Configure Time Periods
Forecast by Date
Forecast
References: None |
Problem Statement: Does the Icarus piping length calculation include waste during fabrication? | Solution: No.
Keywords: weld, welding, shop fab, field fab
References: None |
Problem Statement: How is the Override_ID number in the Manage Override screen of Collaborative Forecasting (CF) generated? | Solution: The Override_ID number is generated from Oracle via a sequencing program and trigger. The ID number is applied to the override in CF. When CF sends that override to Demand Manager, the ID number is also sent.
ID numbers are not stored in an Oracle table. The table in Oracle only saves the last number used.
Keywords: Override number
Sequence number
References: None |
Problem Statement: You recently changed your CFOWNER password and now Publish to CF is failing.
Aspen Collaborative Demand Manager(DM) did not throw any errors after publishing, but noticed that the CF Return
Code Message displaying previous months (05/02/2011) time stamp and Data
last published to CF and current months publish(06/02/2011).
looked into cf.log file it shows as below
563 [main] DEBUG com.aspentech.cf.share.dbsvc.ConnectionRC.log() - Driver
Vendor: 'null'-Thu Jun 02 16:45:03 CDT 2011
953 [main] INFO ConnPool - ConnPool refreshed due to fatal condition-Thu Jun
02 16:45:04 CDT 2011 | Solution: To resolve this, you must reset the password in jdbc.ini file.
Keywords: None
References: None |
Problem Statement: Is it possible to make a weekly bucket model in Aspen Demand Manager?
? The Configure Time Periods screen allows selection of a Model start month; is it possible to select a Model start week instead?
? Aspen Demand Manager allows generation of forecasts by weekly bucket, but is it possible to change the bucket start time from Month to Week? In other words, is it possible do the following scenario?
Run the model in the 3rd week of JUNE. If you set Model start month to JUN07, you can't use the history data of the 1st and 2nd weeks in generating forecast. If you set Model start month to JUL07, you can use the history data of the 1st and 2nd weeks but can't override forecast data in the 3rd and 4th weeks. | Solution: 1. We do not typically recommend doing weekly forecasting. Forecasting at that level can hinder the forecast algorithms ability to pick up seasonal patterns and it can have a very big impact on the size and memory requirements of the implementation because all periods in PER have to be in weekly buckets.
2. On the specific questions described in the problem statement above.
To do weekly forecasting, the Number of months of history as weeks setting and the Number of months out to forecast as weeks setting (from the tree menu: Development Tools | Configure Time Periods) needs to equal the number of months of history and the number of months out to forecast respectively.
The value of the Period advance frequency/forecasting periods setting should also be changed from MONTH to WEEK.
However, even when doing weekly forecasting, by default the rolling forward of the time periods are still controlled by the monthly buckets, so you can't have the forecast start in the middle of a month (i.e. starting the 3rd week of JUNE), unless you created some custom roll forward logic to handle the past time periods this way.
Keywords: FORECAST
WEEKLY
MONTHLY
BUCKET
References: None |
Problem Statement: I am not getting an insulation cost for my piping component. How do I achieve this? | Solution: Two items must be defined in the component specs form in order to get insulation cost for your piping component...entering only 1 of the 2 will not generate the insulation:
1. Specify PPROT in the Special Pipe Description field.
2. Specify the Personnel Protection percent in the Personnel Protection field.
Keywords: piping, Personnel Protection, insulation, cost, report, PPROT
References: None |
Problem Statement: Why am I getting more flanges than I am specifying when using flange type FL ? | Solution: Economic Evaluation products have two different options for flange count. You can use either FL or FT. FL is used for all flanges excluding flanges on valves. FT is the flange count used for all flanges including flanges on valves. If you use FL and have valves on your line, the system will also generate the flanges for the valves.
Let's say you have 2 gate valves, which will need 2 flanges per valve, or 4 flanges total. So if you have 5 additional flanges on your line, for a total of 9 flanges, then if you use FL you would enter 5 or if you used FT you would enter 9.
Keywords: flange, FT, FL
References: None |
Problem Statement: Is it possible to adjust the distance between supports for above ground piping? | Solution: No.A The distance is calculated by the Above Ground Piping model and is a function of the piping size.
Keywords: support, piping, pipe support
References: None |
Problem Statement: Does Primavera have to be installed on the same machine as Aspen Capital Cost Estimator or Aspen In-Plant Cost Estimator? Or can I have them on different machines and export my schedule and then import it into Primavera? | Solution: Aspen Capital Cost Estimator or Aspen In-Plant Cost Estimator have to be on the same machine as Primavera. Though the steps have the appearance that the file is exported to Primavera, we use the API integration, so it is actually tied to Aspen Capital Cost Estimator and Aspen In-Plant Cost Estimator.
Keywords: Primavera, export, API
References: None |
Problem Statement: I am getting the error message, DefaultWB is alreday open when I try running my custom report. What could be the problem? | Solution: This is often caused by someone using a logo as a picture instead of an object in their custom report. This issue occurs because the logo was not inserted as an object. The logo should always be inserted as an object. If it is inserted as a picture then it may not work.
Keywords: logo, object, picture, DefaultWB, DefaultWB is already open
References: None |
Problem Statement: How to connect SQL database to report writer template Orion_BlendReports? | Solution: Following steps can be followed:
1. Simulate All and Publish All
2. Create RW queries
3. Goto the local working folder and run the query SQL_Server_Create_Views.sql
4. Run the SQLServer_Create_N_Fill_TWLibrary.sql file on the server to create table TW_Library.
5. This will create report writer tables in the model database.
6. Now Open Excel and go to excel addin to add Report Writer Add in
7. Load the Orion_BlendReports template (or user defined template)
8. Connect SQL server database to the template
9. Connect to database via connection string e.g. “Provider=SQLNCLI11.1; DATABASE=DEMO; SERVER=ZHENGN-W8\ORION; Trusted_Connection=Yes”), and leave the first argument as empty string if using function wizard
Keywords: Report Writer template
SQL database
Orion_BlendReports
References: None |
Problem Statement: If I enter a workforce productivity and a craft productivity, what do the Economic Evaluation products do? | Solution: The crafts that have the productivity entered, they system will use the entered craft productivity. For all other crafts it will use the workforce productivity. It does not compound the productivity.
Keywords: Productivity, craft, craft productivity
References: None |
Problem Statement: | Solution: 130431 has a Report Writer template to generate a report of the PROCLIM data. However, that template does not include the description for the Process Capacity tag. Attached to thisSolution is an updated version of the Report Writer template which includes the tag description.
Solution
The template is attached, called 'PIMS_ProcessCapacityReport_updated.XLT'. Run the template and it generatse the following from PPIMS volume sample database.
Process Capacity Utilization Report
Base Case
Capacity
JAN
FEB
MAR
Tag
Description
Activity
Min
Max
Marg Val
Activity
Min
Max
Marg Val
Activity
Min
Max
Marg Val
SEV
Reformer Severity
100.901
90.000
102.000
100.642
90.000
102.000
99.446
90.000
102.000
SUL in CFP
FCCU Feed Sulfur
1.868
0.100
3.000
1.976
0.100
3.000
1.910
0.100
3.000
AR2
AR2 in FCC Feed
5.000
0.500
5.000
0.225
5.000
0.500
5.000
0.247
5.000
0.500
5.000
0.225
CON
FCC Conversion
74.503
65.000
75.000
74.182
65.000
75.000
74.469
65.000
75.000
Keywords: PROCLIM
Process Capacity
description
Tag Description
References: None |
Problem Statement: Where can I find the Installation Options field in V8? I can no longer find it on the Installation bulks | Mata??l/man-hour adj., vessel tracing form. | Solution: In V7.3.2 and earlier versions, on process equipment, plant bulks, quoted cost tems and equipment model library (EML) items, there was an input field for Installation option on the Installation bulks | Mata??l/man-hour adj., vessel tracing form.
This field has now been moved to the main form. It is located below the Number of identical items field. The installation option field works the same was as it used to work in V7.3.2 or earlier. However, since it is now directly available on the main form, it can be accessed easily. It is now also available on the equipment grid in integrated sizing and costing (ISC) in Aspen Plus or Aspen HYSYS, where it can be used to specify if certain mapped equipment is spare or existing equipment and adjust the cost estimate accordingly.
Keywords: Installation Options, menu, version 8, interface
References: None |
Problem Statement: Where can I find the different Item classifications and Item types available in my Economic Evalution product? | Solution: The list of all the Economic Evaluation Item classifications and Item types can be found in Chapter 1 of the Aspen Icarus
Keywords: Item classification, Item type
References: Manual in. Click on the links for Process Equipment Categories and List of Process Equipment for the complete list. |
Problem Statement: What pipe diameter sizes are allowed in Custom Pipe Specs? | Solution: In V7.3.2 or earlier, users could specify three diameter breaks (Small, Medium and Large) in the custom pipe specs. Starting with V8, two additional diameter breaks (Extra-small, Extra-large) have been added to custom pipe specs input form. In addition, the pipe/fittings material adjustment, pipe valve material adjustment and pipe labor adjustment fields are now available in each diameter break separately instead of once for the whole custom pipe spec. This allows the users to separately manipulate the material and labor costs for different diameter ranges for the same pipe material.
Keywords: custom pipe specs, diameter
References: None |
Problem Statement: What is the maximum number of custom pipe specs per library file and per project? | Solution: Aspen Capital Cost Estimator and Aspen In-Plant Cost Estimator are able to handle and manage a larger number of custom pipe specifications. Specifically:
? Create and edit 999 custom pipe specs in the custom pipe spec library.
Use a library with 999 or create 999 custom pipe specs in the design basis custom pipe specifications.
Use up to 999 custom pipe specs in the piping inputs, including process pipe plant bulk pipe components and installation bulk piping details and general specifications. Custom pipe specs are sorted alphabetically in the drop down menus.
Keywords: Custom pipe spec
References: None |
Problem Statement: What is reported in Project / Area - AREA in my Maxiblock report? | Solution: These are the things that are appearing:
Piping - hydrostatic testing
Instrumentation - testing
Electrical - MCC, Starters, panelboard, testing
Keywords: Maxiblock, testing, area
References: None |
Problem Statement: Sprinkler Fire System is only giving A53 and SS for my piping; is there away to get galvanized pipe? | Solution: There are no options for material type, but you can use a work around by choosing plant bulk piping to put in the actual piping for your galvanized pipe and couplings. It would go something like this:
Run the sprinkler plant bulk and take a look at the results. The sprinklers and the dry pipe valves will be estimated and the piping is estimated as main line, cross-main lines, and branch lines.
Then you can create a quoted cost item for the sprinklers and dry pipe valves and add the piping as installation bulk piping behind the quoted item. Take the lengths, diameters and fittings from the sprinkler plant bulk results but specify connection type you want and pipe material as galvanized type
Keywords: galvanized pipe, galvanized, pip, sprinkler fire system, sprinkler, fire
References: None |
Problem Statement: How can I remove my piping rework (COA 307) from my Aspen In-Plant Cost Estimator project or Aspen Capital Cost Estimator project? | Solution: By default, there is a pefab pipe rework cost (10 % except UK and EU, which is 12.5% of piping cost). This can not be changed directly through an input form field, but can be changed by indexing COA 307 to zero:
Keywords: prefab piping rework, rework, COA 307, 307, rework
References: None |
Problem Statement: How can I adjust how often my Projects are backed up? | Solution: By default, Projects are backed up every 30 minutes. You can adjust this interval by going to the Backup tab on:
Tools | Options | Preferences
You can then adjust the time up or down under Timed Backup (Interval, in minutes)
Keywords:
References: None |
Problem Statement: How to delete multiple components? | Solution: Go to Project View and have the List view in the center pane
In the List view, click on the Components you wish to delete.
Hit the Delete Key and you will be prompted to clarify this is what you want to delete.
Choose YES and it will delete the selected Components.
Keywords: None
References: None |
Problem Statement: How can I have my backup saved under a unique name? | Solution: You can set the system to save the files with unique names by going to:
Tools | Options | Preferences
And choosing the ?Backup
And choosing the ?Backup/Recovery? tab. Once the new form opens, select ?Unique Project Backups?
Please beware, having the backup's saved with unique names can cause many files to be saved taking up large amounts of storage space.
Keywords: backup, unique, crash
References: None |
Problem Statement: What piping and instrumentation bulks are included in centrifugal compressor models? | Solution: For piping and instrumentation bulks related to the compressor, the user can see the documentation to determine whether the P&ID for the compressor covers their requirements. The compressor P&ID includes piping and instrumentation for compressor inlet, discharge (from last stage) and the lube-oil system. It does not include the inter-coolers. A user will have to enter inter-coolers as separate heat exchanger components. Civil bulks will be based on the foundation design based on the weight of the compressor calculated by model.
Also, interstage KO vessels need to be added separately as they are not included in the compressor model. Vessel and exchanger metallurgy may be different from the compressor body in the event water condenses in the interstage coolers if CO2 or SOx is present. A final discharge cooler will also probably be needed.
Keywords: Piping and instrumentation, compressor, inter-coolers, lube-oil system
References: None |
Problem Statement: Why do I only see Pipe Testing COA 306 for one area in my project? | Solution: The Pipe Testing (COA 306) and Instrument Tesing (COA 691) in Aspen In-Plant Cost Estimator are always reported in the last (bottom) area listed in the Project View.A What is reported is for all areas, not just the one area.
Keywords: Pipe Testing, Instrument Testing, COA 306, COA 691, 306, 691
References: None |
Problem Statement: Is it possible to change the default light fixture of electrical bulk item (installation bulk)? | Solution: It is not possible to change the default light fixture (Mercury Vapor/Explosion proof) of electrical bulk item (installation bulk).
The workaround for this can be to specify lighting as plant bulk and not as installation bulk.
Follow the steps below to add lighting as plant bulk with required light fixture type.
1. Add a Component such as Process Vessel
2. Do not specify any lighting under electrical bulk of this component.
3. Add Lights and outlets which is under Project Components | Plant bulks | Electrical - General
4. Select the required fixture type and specify other necessary inputs.
Keywords: Light Fixture, Mercury Vapor
References: None |
Problem Statement: Do the economic evaluator products include the steam headers when I choose P-SP Tracing (Pipe Connection/Spiral Traced)? | Solution: No it does not include the steam header costs. It will calculate the cost for the supply and return sub-headers, but it assumes an exiting steam header.
Keywords: None
References: None |
Problem Statement: I have a component, under which electrical bulk is specified as below. Why is there is no electrical cost generated for that component? | Solution: Voltage is needed to generate cost for component electrical bulk item. For starters, it requires the specification of voltage and power. For wire runs, it requires the specification of voltage and power, or voltage and wire size.
Keywords: Electrical bulk
References: None |
Problem Statement: Does the cost of cable include cable tray? | Solution: In Aspen In-Plant Cost Estimator (AIPCE), if you choose the electrical cable type to be single core wires in tray or multiple core cable in tray, the cost generated by AIPCE does not include the tray. The cost is strictly the cost of the cable and the installation hours for installing the cable in tray. User needs to add the cable tray separately.
Keywords: Cable, tray
References: None |
Problem Statement: How do I change the units of measure used in custom pipe specs? | Solution: Some units of measure (temperature, pressure, and etc.) can be modified for custom pipe spec files using IP or Metric base units. To modify them, close any open project and right click on the custom pipe spec file located under Library tab | Custom Piping Specs | Inch-Pound or Metric in Palette window, then Modify. In the External Custom Pipe Specs window, highlight ?Units of Measure? and click on Modify button.
The Units of Measure dialog box then appears, which can be used to modify some of the units used in the input form of the custom pipe spec file.
Keywords: Custom pipe specs
References: None |
Problem Statement: When I try to choose pipe material (or equipment or electrical), I am not getting all the additional options in the material selection. For example the pop up box does not appear, rather the program gets stuck (with ping sound). | Solution: The ping sound probably is because you are clicking in the GUI form but the window is open elsewhere (it is a modal dialog).
Likely, you may be using 2 monitors. As long as you open Aspen Capital Cost Estimator (ACCE), Aspen In-Plant Cost Estimator (AIPCE), or Aspen Process Economic Analyzer (APEA) on the same monitor as your main display (whether its laptop or the second monitor), it works fine. The pop box for additional materials opens up. However, if the two are different, the main display and the monitor where you open up ACCE/AIPCE/APEA, you may get the ping sound.
Keywords: material database, ping sound
References: None |
Problem Statement: When I look at the Indirects input forms in Aspen In-Plant Cost Estimator, the fields all have a zero in them and do not generate any indirect costs; but when I look at my forms in Aspen Capital Cost Estimator, the fields are blank but generate indirect costs; what is the difference? | Solution: The default craft wages in Aspen In-Plant Cost Estimator (AICE) are loaded wages where the default craft wages in Aspen Capital Cost Estimator are unloaded wages. What this means is that the AICE wages include all the indirect costs, except rental equipment. The wages in ACCE do not include the indirect costs and need to be specified (though most do have default values).
Keywords: craft wage, loaded, unloaded
References: None |
Problem Statement: I am using Aspen In-Plant Cost Estimator V8.0 and can not find the Special Options field in the M'l/Man-hour%Adj that I use to turn Demolition on in my project?A How can I do Demolition? | Solution: Starting in V8.0, in all the Economic Evaluation products (Aspen In-Plant Cost Estimator, Aspen Capital Cost Estimator, and Aspen Process Economic Analyzer), the Demolition option was moved to the main form and is in a new field named Installation Option.A The default is Standard Installation, and to do a Demolition use the drop down menu and choose Demolition.
Keywords: Demolition, Installation Option, Installation, Options
References: None |
Problem Statement: When developing Report Writer templates, you may notice that some structures to retrieve data work in template mode, but they do not work in execution mode.
In many cases, this problem is related to the sequence in which the Report Writer functions are executed; in template mode, all functions are executed simultaneously, while in execution mode, there is a function execution order.
What caveats are there to develop templates to take into account these function sequencing problems? | Solution: These are some structures that will work in template mode and will fail in execution mode:
1. In a sheet you refer to a data set function in a previous sheet, for example an ATGValue() function that retrieves data from the ATDSPCapacities() function in the previous sheet. The row where this ATDSPCapacities() is located is deleted by ATFDeleteRow() function: this delete function is executed before Report Writer evaluates the next sheet, therefore, the data is not available for retrieval in the next sheet.
2. A filter parameter for a ATDSFilter() function comes from an ATGValue() function in the same sheet: as the ATGValue() function is executed after the filter function, the filter function will not retrieve any data.
3. An ATDSRange() function is placed in the same sheet where the source data set is written by Report Writer Data Placement functions (ATGValue(), ATGColDown(), etc.). The ATDSRange() function needs to be placed in the next sheet.
Report Writer function execution sequence
The Aspen Report Writer templates execute a specific sequence of functions in order to create the desired report. Below is a listing of the functions in the order they are executed.
1. If your template contains any open database functions whose Prompt parameter is set to TRUE, a dialog box displays prompting you to select the database from which you want to retrieve data.
2. After database information is retrieved, Aspen Report Writer locates and executes the ATPreReportCode subroutine.
Worksheets are processed in order from left to right. For each worksheet, the following occurs:
3. Aspen Report Writer executes several preliminary Formatting Functions
ATFDeleteSheet functions with DeleteBeforeProcessing set to TRUE are deleted and skipped.
ATFReplicateSheet functions are processed.
4. Aspen Report Writer locates and executes any Generic Data, PIMS, or Orion functions.
ATDB Database connection functions (ATDBMDB, ATDBODBC) are processed.
ATDSRange functions are processed.
ATDS data set functions that execute against a database connection are processed.
ATDSSort, ATDSRange, ATDSFilter, ATDSDistinct, ATDSSubTotal and ATDSPivot functions are processed.
5. Aspen Report Writer locates and executes Formatting functions associated with range replication.
ATFReplicateRangeAcross functions are processed
ATFReplicateRangeDown functions are processed
6. Aspen Report Writer locates and executes any Data Placement functions.
ATGHeadingsAcross and ATGHeadingsDown functions are processed
ATGCol functions are processed
ATGValue functions are processed
ATGColtotal functions are processed
7. Aspen Report Writer executes final Formatting functions.
ATFReplaceValue functions are processed
ATFBestFitRow and ATFBestFitCol functions are processed
ATFRenameSheet functions are processed
ATFDeleteRow and ATFDeleteCol functions are processed
After all worksheets have been processed, the following is performed:
8. Remaining ATFDeleteSheet functions are processed
Note: The ATFDeleteSheet function is the last Formatting function to be executed. In addition, because references to deleted sheets are negated, the ATFReplaceValue function is processed to replace cells that reference a deleted sheet.
9 ATFSaveAs functions (ATFSaveWorkbookAsHTML , ATFSaveWorksheetAsHTML ) are processed.
10 Aspen Report Writer locates and executes any ATPostReportCode subroutines.
Keywords:
References: None |
Problem Statement: When I adjust the Percent of welds in shop on my Pipe bulk - item details form, why is there no change in the number of welds being done in the field? | Solution: Check your range in Project Basis View for your Remote Shop Diameter.  If your pipe diameter is smaller than the minimum or larger than the maximum diameter, then it already is being done in the field and the Percent of welds in shop field will have no affect.
Keywords: remote shop, field, remote, welds
References: None |
Problem Statement: Does Economic Evaluator use a different productivity for Shop vs Field Piping? | Solution: Yes. It assumes the Shop is 18 percent more productive than the Field.
Keywords:
References: None |
Problem Statement: How do I run Primavera 6 from Aspen In-Plant Cost Estimator? | Solution: First you need to make sure that Aspen In-Plant Cost Estimator sees P6. If you check page 12 of the Aspen Economic Evaluator V7.2 Release notes, it discusses where to look to do this (which is Tools | Options | Preferences (Schedule)). Note, it does not specifically say P6, so choose P3E. We have specifically tested with P6, not P6.1. If you have a newer version it may or may not work.
Next run a project evaluation. After that you should be able to go to RUN | DEVELOP SCHEDULE and choose accordingly.
Keywords:
References: None |
Problem Statement: Which version of Primavera are supported with V7.2 Aspen In-Plant Cost Estimator? | Solution: Supported version of Primavera with V7.2 of Aspen In-Plant Cost Estimator are P3, P5 and P6.
Keywords: Primavera, IPM
References: None |
Problem Statement: When running and Aspen Report Writer template, I do not get data for all my cases. I only see data for the cases included in the last PIMS run that I made. Why is this? | Solution: When an Aspen Report Writer template is run you will see the dialog box below.
Notice that the default value for theSolutionIDs option is LAST. This tells Aspen Report Writer to only retrieve data that has the lastSolution ID. Since each PIMS run has a differentSolution ID, this means only the cases that were included in the last PIMS run will be reported. If the user desires to have additional cases reported, then click on the Browse button to the right of theSolutionIDs box and you will see a selection dialog like this one:
When Select All is checked at the top, then all data in the results.mdb database will be included in the Aspen Report Writer output. Alternatively, users can select only the desiredSolution IDs.
Keywords:
References: None |
Problem Statement: When I run a project evaluation or an item evaluation, it takes a very long time for it to complete. It's really slow and taking way long to run.
Is there any way to speed things up? | Solution: There are a few things that can be done to fix this problem.
1. The main reason for slowness could be due to a license problem. Not that the license is bad or corrupted, but it may not be configured quite properly through the SLM Configuration Wizard.
1. The specification of the type of license file in the SLM Configuration Wizard. Open your license file using notepad or another true editing tool, and make a note of what the license lines start with.
SLM_ = Unified licensing
AEA_ = Standard licensing
AET_ = Token licensing
Once you have identified the type of file you have, run the SLM Configuration Wizard.
1. Click the Next button until you get to the Configure Advanced settings screen, then click the YES radio button, and click Next.
2. Keep project tracking unchecked, then click NEXT.
3. With the Advanced Network Settings screen, click Next.
4. At the Licensing Type screen, click the Register and optimize license type usage registry settings check box, and then check the correct license type box, according to your findings above, and when done, click Next.
Keep clicking Next until you can click the FINISH button.
2. The other issue may be with what we call buckets. SLM supports license grouped into buckets. For the SLM 2004, the SLM must be configured to look for other buckets other than the default bucket. This was done in order to add support for checking out a license from specific buckets instead of all buckets. To configure buckets for SLM:
1. Open the SLM Configuration Wizard ( Start | Programs | Aspentech | Common Utilities )
2. When Prompted for Connecting to a Server, make sure Yes is selected. Click Next.
3. In the Add servers window, in the Configured Server frame, highlight the server, then click the Buckets button.
4. If you know which buckets you need to add, type the number in the Add Bucket field, then click the Add Bucket button. If you don't know which bucket to add, type in the number 1, then click on Add Bucket. Then type in 2, and then click on Add Bucket. Continue to do so until you add the number 7. Click OK
5. Keep clicking Next until you can click the Finish button. Click Finish and then test the products.
3. Lastly, check to see how many configured servers are listed in the SLM configuration wizard (Start - Programs - Aspentech - Common Utilities - SLM Configuration Wizard).
If there are many servers listed, try using the IP address of the server or change the server name to include the full server name instead (ex: servername = SLMserver --> change to SLMServer.company.com). The Full computer name of the server can be found by right-clicking on the My Computer icon, selecting Properties, and clicking on the Computer Name tab.
If you still have problems, repeat the process but add 8 and 9 to the buckets list. If it still doesn't work, you should contact Aspen Tech support and send the support specialist a copy of your license file.
Keywords: slow, licensing, license, evaluation, evaluate, too long, long time, buckets, bucket, unified, token, standard, bucket, computer name, server
References: None |
Problem Statement: What work items does Code of Account (COA) 614 - Temperature Transmitters - include? | Solution: Man hours for Code of Account (COA) 614 include checking out of storage, hauling to erection site, calibrating, installing, testing, and final inspection.
Keywords: COA, Code of Account
References: None |
Problem Statement: When I try to run my Primavera schedule through IPM, it starts to work, and then the cost result database window disappears and no Primavera report is shown. | Solution: The path that where Aspen Icarus Project Manager is installed to, is too long. The default path is D:\Program Files\AspenTech\Aspen Icarus 2004.2 (which is 46 characters long, including all characters AND spaces).
The path limitation is 56 characters total.
Keywords: P3, primavera, schedule
References: None |
Problem Statement: I have some old Icarus System Devices that I would like to return. Where should I send them to? | Solution: Please return all Icarus System (Firmware) devices to the following location:
Aspen Technology, Inc.
Attn: Michel McCormack
704 Quince Orchard Road, Suite 150
Gaithersburg, MD 20878
phone: 301-944-2500
Keywords: firmware
Icarus
system device
dongle
References: None |
Problem Statement: I am getting an access denied error message when opening my project; what might be causing this error message? | Solution: When the file is created in a new release and then you try to open it in an older release you will get the access denied error message. For example, if you create a project in V7.2, and later try to open it in V7.1, you will get the access denied error message
Keywords: None
References: None |
Problem Statement: When I open up IPM/Kbase/IPE, I immediately get an error message saying:
Program Error ICARUSKB.exe has generated errors and will be closed by Windows.
This can happen if you have changed your default project location to a path that does not exist OR if you have specified more than 9 Alternate Project Directories.
There is a limitation on the number of Alternate Project Directories that the system can handle. That limitation is 9 Alternate Project Locations.
If you add in the 10th one, the software will allow you to do this, but the next time you try to run the software, you will receive an error message where you cannot open the program. | Solution: This is an easy fix. Run the Preferences Tool (can be run outside of the software), and remove one or more Alternate Project Directories that go over the 9 allowable limit. You can also reset your project location to the default so that you will be able to open the software.
Here's how to do it:
Go to your Aspen Icarus system directory in Windows Explorer.
The default is c:\Program Files\AspenTech\Aspen Icarus x.x\Program\Sys. (This may be different depending on where the software is installed).
Double-click on the Application file called KBWPrefs.exe.
This will run the Preferences tool that you normally run from the Tools - Options - Preferences menu in the Aspen Icarus software.
When the Preferences tool opens, click on the LOCATIONS tab, and click on the Alternate Directory to remove and/or change to SET DEFAULT back to the default directory.
Example for v2006 and earlier:
c:\Program Files\AspenTech\Aspen Icarus x.x\Data\Archives_XXX (use IPE, Kbase, IPM, etc. for your particular Aspen Icarus product).
Example for v2006.5 and later:
C:\Documents and Settings\All Users\Documents\AspenTech\Shared Aspen Icarus 2006.5 Files\Archives_XXX (use IPE, Kbase, IPM, etc. for your particular Aspen Icarus product).
Once finished, be sure to click the 'Apply' button, and then click the OK button to save the changes.
You will now be able to go back and run the Aspen Icarus software.
Keywords: default
project location
locations
Alternate project directory
alternate
ICARUSKB.exe
References: None |
Problem Statement: How does the Icarus software calculate the equivalent lineal footage for valves and fittings for piping insulation? | Solution: Here is the formula:
User gets 100% of pipe length plus an additional 5% for wastage. (You don't add in the 5% waste until you add in all the valves and fittings first).
AND
Also gets +4 ft (1.2192 meters) for EACH fitting AND +15 ft (4.572 meters) for EACH valve. (A fitting includes the elbows, tees, etc, and the valves include all valves (flanges, gate, ball, etc.)
The reason for so much insulation with each VALVE you add is because you have to add in an additional 2 fittings to that valve. (This is because there is a fitting on each end of the valve). So, if you add in 1 valve, it would be 7 feet (for the valve) plus 2 fittings (4 feet per fitting x 2=8 feet) for a total of 15 feet of insulation for each valve specified.
For example (Fitting):
If you have 100 ft yard pipe + 1 fitting you would see on the report a total of: 109 feet 100 ft (pipe length) + 4 ft (fitting allowance) + 5.2 ft (for waste) = 109 feet
Another example (with a VALVE):
If you have 100 ft yard pipe + 1 valve you would see on the report a total of: 121 feet 100 feet yard pipe + 1 valve (at 15 ft) + 5% waste (115 x .05=5.75) = 120.75 feet which rounds to 121 feet.
Keywords: calculate
insulation
piping
pipe
References: None |
Problem Statement: Does the number of impellers represent the number of stages on a centrifugal compressor? | Solution: No, the number of impellers does not represent the number of stages. A single stage may have multiple impellers. NOTE: On the design data sheet there is a ?Power per stage? entry but it is actually a power per impeller value.
Keywords: Impeller, multiple stage, centrifugal compressor
References: None |
Problem Statement: Does Economic Evaluator use standard efficiency or high efficiency motors? | Solution: Economic Evaluator uses standard efficiency motors.
Keywords: motor, efficiency, high efficiency, standard efficiency
References: None |
Problem Statement: 1036922Customer has question as to which component to use for underground yellow jacket pipe installation | Solution: Use above ground or buried pipe and then under special pipe description you select the full jacket.
provide buried depth which is only applicable for buried pipe.
Keywords:
References: None |
Problem Statement: I have several versions of Hysys installed in my system. How can I run a selected version of the product rather than the default version? | Solution: Download the attached batch file. Run it to select the version which you would like to run when you double click on your models.
Keywords: Hysys
Multiple
Versions
References: None |
Problem Statement: How to open files with extention .izp and *.szp | Solution: The steps are as below:
1. Save both .izp and .szp files under the folder with the same name of izp and szp files. You can consider that as your scenario folder.
2. Create the directory in your machine which will be one of your project directories. It can be your old directory too. Now create a new folder under this directory which will be your project folder and save the previously created scenario folder under this new project folder.
3. Main thing is there should be project directory, project folder and under project folder scenario folder (consist of izp and szp files) will be there.
4. Now you open the Economic Evaluation program and you have to direct the program to consider the project directory as your default project directory or the alternate project directory. You can do that by going to Tools | Options | Preferences | Locations and click on Add button to browse to the directory you created like the snap shot below:
Once you add it click on Apply and ok button it will show the project directory in the alternate project directory list.
Now if you refresh the palette view it should show the new directory with the project folder and scenario folder.
Keywords: None
References: None |
Problem Statement: How can I use the ATDSRange() function to create a data set from a range of cells in the MS Excel template? | Solution: Aspen Report writer normally retrieves data from a results.mdb, but sometimes, we may need to pull some data from the Excel template itself in addition to the results.mdb.
The ATDSRange() function allows you to define a Data range in the template itself so that you can pull the data from the range (i.e. it creates a data set in memory from that data range). The range may contain one or more rows (in addition to the first row which is the row of Column Names) and one or more columns.
Attached is the sample template where a input data range is defined in the sheet 1, with blend tag and Comp_cost columns.
In sheet2, it is reporting Blend Tag, Blend quantity, Cost of the Tag, and Total value of the Component.
Please note that it is reading Cost of the Tag from the sheet 1, which is a user input.
Keywords: userdata
input
report writer
manual input
ATDSRange
References: None |
Problem Statement: I would like to know the weight of the single pipe segment without accessories. How can I do this? | Solution: The weight of piping reported by the software is the sum of both piping and fittings. If you wish to know how much a single pipe item weights, you can add an Above grade or buried piping and specify the length, diameter, and the material of the pipe
Once you have added this item without any accessories, you can evaluate the single component. The Reporter Report will display the weight of the pipe without accessories.
Keywords: Piping, weight
References: None |
Problem Statement: Is it possible to use default, unloaded wage rates in Aspen In-Plant Cost Estimator (AIPCE) instead of the default, loaded wage rates? | Solution: You can enter and use your own unloaded, wage rages in AIPCE, but you can not have AIPCE use internal, default, unloaded wage rates. The only default, internal wage rates that AIPCE can use will be loaded wage rates.
Keywords: unloaded, loaded
References: None |
Problem Statement: Whenever I run the Excel report “Project – Indirect Summary”, a price for rental equipment is listed, however, running the Standard report “Equipment Rental – Project” no equipment is listed. Where is the price for rental equipment being generated from? | Solution: This happens when you have an entered value in “Equipment rental cost” in the Indirects option of Project Basis View. When you enter a value here, it will override any system generated costs for rental and will automatically report the cost given by the user.
Keywords: Rental equipment, indirects, Equipment rental cost.
References: None |
Problem Statement: Why am I not seeing my Total Sensor Cost for option 6, Extra control valve added to another loop? | Solution: Extra control valve added to another location, option 6, does not use sensor loop information If sensor loop information is entered, it is ignored. So even though there may be data for a sensor specified on the form, it is not being used. Since the sensor data is not being used, the Total Sensor Cost is not being used.
Keywords: Total Sensor Cost, Extra control valve added to another loop, option 6, 6, sensor, locaation
References: None |
Problem Statement: Sometimes, Aspen Report Writer does not show up in Excel after the installation. This can happen if the Report Writer DLL is not registered properly. So how do we fix this? | Solution: When the Report Writer DLL is not registered properly, please do the following:
1) In Excel, hit Alt + F11, which will open the VBA editor. Go to Tools |
Keywords: report writer
register
unregister
AspenRpt.dll
References: s and check if there is one line that says Missing: AspenRpt. This would mean that it is not seeing the dll.
2) Go to the C:\Program Files\Common Files\AspenTech Shared, and check if the AspenRpt.dll is found there.
3) If not, you will need install/reinstall the ARW. If it is there, then unregister and Reregister the dll:
From Start | Run,
First unregister the .dll file:
regsvr32 /u C:\Program Files\Common Files\AspenTech Shared\AspenRpt.dll
Then re-register it:
regsvr32 C:\Program Files\Common Files\AspenTech Shared\AspenRpt.dll
The confirmation message DllRegisterServer in AspenRpt.dll succeeded should appear.
4) Check in VBA if the AspenRpt is now as a valid reference.
5) Recheck the Report Writer Add-In in Excel, and then try to run a template again. |
Problem Statement: How to obtain inside metal wall temperature of a vessel using depressuring utility? | Solution: The inside wall temperature of a vessel is not readily available in the results using the depressuring utility. However this can be calculated based on inner wall and outer wall temperatures.
The conductive heat transfer through a cylindrical vessel or pipe can be calculated by:
Q = 2* PI * L* K * (Ti - To) / (ln (Do/Di))
Where,
Q = Conductive heat transfer through the wall
PI = 3.1416
L = Height or Length
K = Conductive heat transfer coefficient
Ti = Inside wall temperature
To = Outside wall temperature
Di = Indside diameter of the vessel
Do = Outside diameter of the vessel
Assuming that the heat transfer rate will be constant through the wall, we can say that the temperature T at a diameter D will be given by:
T = To + (Ti - To) [ln (Do/D) / ln (Do/Di)]
To create a time chart the calculations for temperature using the above equation should be implemented in a spreadsheet and this should be located within the sub-flowsheet of the depressuring utility. See the attached example.
Keywords: Depressuring utility, wall temperature, inside metal wall temperature
References: None |
Problem Statement: What is a 'liquid phase inversion' in a '3-phase separator carry over' setup? | Solution: It is the water fraction at which the system changes from a water-in-oil emulsion to an oil-in-water emulsion is called inversion point
The effective viscosity of an emulsion depends on the properties of the oil, the properties of the water, and the relative amounts of each phase. For a water-in-oil emulsion (in other words, oil is the continuous phase), the effective viscosity of the emulsion can be much higher than that of the pure oil. With increasing water fraction, the system will gradually behave more like water than oil. The water fraction at which the system changes from a water-in-oil emulsion to an oil-in-water emulsion is called the inversion point. The transition to an oil-in-water emulsion is generally very abrupt and characterized by a marked decrease in the effective viscosity. The actual inversion point must usually be determined experimentally for a given system as there is no reliable way to predict it. In many cases however, it is observed to occur in mixtures consisting of between 50% and 70% water. If the Liquid Phase inversion % goes up it behaves mostly as water (Oil in water) and has less viscosity and if it is low it behaves as Oil (water in Oil) and has high viscosity.
Keywords: Liquid phase inversion, 3-phase separator, Carry over
References: None |
Problem Statement: How can I specify and report the flow rate in Nm3/h in my simulation? | Solution: The flowrate can be specified in Nm3/h directly on the molar flow entry in the stream (Worksheet/Conditions page).
The flow can be reported in Nm3/h entering the session Preferences from Tools in the main menu and the Variables Tab and cloning one of the available unit sets and changing the required variable units:
Keywords:
References: None |
Problem Statement: Is it possible to display text values on the PFD in Aspen HYSYS? | Solution: New in Aspen HYSYS 2006.5, text values can be displayed in PFD tables. Due to new functionality introduced in this version of Aspen HYSYS, there are at least two situations in which this may be necessary: spreadsheet cells and user variables containing text values.
Keywords: PFD, text, value, spreadsheet, user, variable, display, table
References: None |
Problem Statement: The D86 95% (Petrol) point calculated by property Correlation Manager and Boiling point utility are different. | Solution: In HYSYS, user should not apply D86 95% correlation on stream using property Correlation Manager because this will give a different D86 Petrol Point result than Boiling Point utility. In HYSYS only the Boiling Point utility and Cold Property utility will give correct D86 temperatures.
In RefSYS, user can apply D86 95% correlation on stream and that will be consistent with Petroleum Assay utility. Boiling Point curve utility will be disabled for RefSYS in future version. This is because RefSYS treats HYPO NBP as final boiling point and HYSYS treats that as mid boiling point.
Please note that petroleum properties will not work if Aspen RefSYS (Aspen HYSYS Petroleum Refining) is not installed or does not have license for this software.
Keywords: D86 Point, Property Correlation Manager, Boiling Point Utility, Cold Property Utility
References: None |
Problem Statement: How to copy a material stream along with the utility (eg.depressuring utility) from one simulation file to another? | Solution: There can be a scenario where you need to copy a stream along with the attached utility from one large simulation to the other to continue further study on it. For example, you have a huge steady state simulation with large number of unit operations, subflowsheets and logical operators and want to carry out the depressuring studies on a stream in this simulation. Running a depressuring utility in a large flowsheet may complicate simulation further. This task can be simplified by exporting the stream along with the depressuring utility to a new simulation using the template feature available in Aspen HYSYS .To do this you will need to follow the steps given below.
1. Open the main simulation case.
2. Create a new stream.
3. Click on the Define from other stream and define that new stream from the stream connected to the depressuring utility.
4. Now delete everything away that is unrelated with the the depressurizing utility so that the main simulation has only the stream with the depressuring utility, the new stream created, and the depressuring utility subflowsheet.
5. If the original stream was a calculated one ( the variables on worksheet are black in colour), you will find that the original stream is not unconverged as we delete the unwanted attached unit operations. Open the stream linked to the depressurizing utility and click the define from other stream button and copy from new stream.
6. You can now delete the new stream.
7. Go to Simulation / Main Properties and select Convert to Template.
8. DO NOT SAVE THE CASE as you have deleted many items from the simulation. Save the template and close the case.
9. Open or create the new case and create a subflowsheet in the flowsheet selecting Read from Exiting Template. Pick the template you saved previously.
10. Select Yes, when asked for use the same fluid package. The stream along with the depressuring utility will be available in the new simulation.
Keywords: Depressuring Utility, Template
References: None |
Problem Statement: Is it possible to specify and report volumetric flowrate at normal conditions using Aspen HYSYS? | Solution: To input volumetric flow rate in normal conditions (0C and 1 atm) choose Nm3/h as the unit when entering molar flowrate.
To report calculated volumetric flow rates at normal conditions, open your session Preferences and select Nm3/h as the unit of measure for Std Gas Flow. Note that you will need to clone the existing unit set if you are using EuroSI, Field or SI as your current unit set.
Keywords: normal, standard, flow, conditions
References: None |
Problem Statement: What's New in Aspen HYSYS V7.2 - New Functionality in Aspen Properties | Solution: Aspen HYSYS V7.0 introduced access to the Aspen Properties chemical compound databases and physical and chemical property calculation methods. This introduction more than doubled the thermodynamics capabilities of HYSYS, and made over 13,000 new compounds (mostly organic) available to HYSYS users.
The enabled property methods can be used in HYSYS process calculations, thus extending the types of components and processes that can be modeled using Aspen HYSYS. For example, you can use the NRTL property methods in Aspen Properties to model highly non-ideal chemical systems, or the electrolyte NRTL property methods to model electrolyte systems.
V7.2 includes new functionality that within Aspen Properties that is available now also to HYSYS users.
New Electrolyte Models
The Symmetric Electrolyte NRTL activity coefficient model has been added, with corresponding property method ENRTL-SR. This model calculates activity coefficients based on a symmetric reference state for ionic components of pure fused salts. This model possesses several advantages over the original Electrolyte NRTL model:
In non-aqueous systems it removes the need to introduce water where there would otherwise be none.
For mixed-solvent systems, this is more convenient than the reference state of infinite dilution in pure water used by the original Electrolyte NRTL model.
This model calculates the Gibbs free energy and enthalpy from the same thermodynamic framework as the activity coefficient, rather than using mixing rules in systems with multiple electrolytes, as the original Electrolyte NRTL model did. This is more thermodynamically consistent for systems with multiple electrolytes, and in systems with no ions it is identical to NRTL-RK.
The Unsymmetric Electrolyte NRTL activity coefficient model has been added, with corresponding property method ENRTL-RK. This model uses the same reference state for ions (infinite dilution in pure water) as the original Electrolyte NRTL, but uses the more consistent methods for calculating Gibbs free energy and enthalpy of the Symmetric Electrolyte NRTL model. For systems with a single electrolyte, this should be identical to Electrolyte NRTL.
GERG2008 Equation of State for Light Gases
The GERG2008 equation of state for natural gas has been added. This is a method designed for high accuracy of typical natural gas components and only those components, similar to REFPROP which is designed for a somewhat broader range of components.
This is the 2008 extension to the GERG-2004 model. GERG2008 is a standard (ISO-20765) international reference equation suitable for all natural gas applications, including processing, transportation, and storage of natural gas. It is the accepted method used to calculate the flows of light gases at custody transfer points between companies, where money changes hands and highly accurate properties are required.
New IAWPS-95 Steam Tables
The IAPWS-95 steam tables has been added. IAPWS-95 is the current standard steam table from the International Association for the Properties of Water and Steam, which replaces the IAPS-84 steam table currently implemented as STEAMNBS. Benefits of the new steam tables include:
More accurate near the critical region
Valid up to 1000 ?C and 1000 MPa
Accurate to within measurement error for such properties as density, isobaric heat capacity, and speed of sound
Amines Data Package
The methyl-amine data package has been updated to produce more accurate VLE results for methyl-amine, dimethyl-amine, and trimethyl-amine with water, ammonia, and methanol.
It can be used within HYSYS by importing the property definition file generated by Aspen Properties or Aspen Plus into Aspen HYSYS.Solution ID #125517 provides information on how to do this.
Keywords: Usability Improvements, What's New, New V.2
References: None |
Problem Statement: How do I add the additional tabs in EDF file? | Solution: In order to add additional tabs in the EDF interface, you first click the bottom of tab and highlight the name of tabs. If you click the right button (P1), you select Page tabs properties .
Figure: P1
You add additional tabs, for example: Parameters, Results tabs. You need assign a value for each tab (Parameters is 2 and Results is 3, see P2). Click OK.
Figure: P2
Then, put your mouse on the interface and click right button. Select Open visibility manager and click Edit for page controller (see P3).
Figure: P3
In visibility controller view, you add Parameters and Results. The integer value for both Low and High cells have to be the same and is consistent with value for each tab in the Static Tabs, which we just assign: 2 and 3 (see P4).
Figure: P4
Keywords: Unit extension, EDF, Automation, Aspen Hysys
References: None |
Problem Statement: In new license file, we could not find any keys such as SLM_Extensions_OLGAS, SLM_Extensions_PIPESYS, SLM_HYSYS_OLGAS, SLM_HYSYS_OLGAS3P for OLGAS in Pipesys and pipesegment. Do we need any additional license keys from Aspentech to run OLGAS in PIPESYS after getting the license from SPT group in Hysys V7.2? | Solution: After October 31, 2010, AspenTech no longer offers the PIPESYS or OLGAS technologies from SPT Group as part of our aspenONE Engineering suite. Customers have to license either PIPESYS or OLGAS directly from SPT Group.
Customer will need to install V7.2 CP2 and hotfix (130562) from the support site. After that it will work. Now there is no need to SLM license for OLGAS/Pipesys from Aspen Tech.
Keywords: OLGAS, PIPESYS, pipe segment, SPT, license keys.
References: None |
Problem Statement: Results displayed in Aspen HYSYS do not match with the results displayed in the TEMA sheet when using HTFS or EDR to design the heat Exchanger.
For example,
- Results in HYSYS
- Results in the TEMA Sheet | Solution: In HYSYS, open the Heat Exchanger window.
Check the Ignored option at the bottom right of the window.
Then uncheck it. The program will update the calculations and the results in the TEMA sheet will match the ones in HYSYS.
Keywords: Heat Exchanger
TEMA sheet
Match results
HYSYS
References: None |
Problem Statement: How does one view pure component properties if using the Aspen Properties database in Aspen HYSYS? | Solution: When using the Aspen Properties database in Aspen HYSYS, the component properties will not be displayed on the standard pure component property view. The properties of a given component can; however, be viewed by the following method:
1. Select the component of interest from the Component List and click the View button.
2. On the Component Property view that appears, click the Edit Properties button to view the details of all component properties.
If you have multiple components in your Fluid Package and you would like to view the pure component properties for all components:
3. Click on the Edit Properties button at the bottom of the Fluid Package property view to see the complete details for all components.
Keywords: Pure, Component, Aspen Properties, View, Properties
References: None |
Problem Statement: Why do the tray sizing utility and the rating tab have two different diameter or different results?
Tray sizing utility and Rating tab show two different results. Which one should I trust? | Solution: Results of tray sizing or tray rating utility should be read from from the respective utility. It does not have any connection with the Rating tab in the column view window. The rating tab is for dynamic mode and not for tray sizing purpose. The rating tab contains default numbers. You have to change the diameter and tray/packed space in the rating tab manually.
Keywords: Rating tab, rating, tray sizing utility.
References: None |
Problem Statement: What does the API521 for wetted area tick box option (for Fire API52 mode) in the Depressuring Utility do? | Solution: According to the API521 standard or Guide for Pressure-Relieving and Depressuring Systems - API RECOMMENDED PRACTICE 521 1997, only the portion of the vessel that is wetted by its internal liquid and is equal to or less than 25 feet (7.6 m) above the source of flame needs to be recognized. Portions higher than 25 feet are normally excluded. It is assumed that the source of flame refers to ground grade. This API521standard is in use when one selects the tick box.
Please note:
1. The vessel elevation (the distance from ground surface) is also taken into account.This means that Q= 0.0 (or as good as Adiabatic depressuring) if the vessel bottom liquid level is above 25 feet.
2. This option does not work in 2006.5 (CQ00307279: Problem with API fire and depressuring).
Keywords: Depressuring, API521 standard
References: None |
Problem Statement: New Feature in Aspen HYSYS V7.2 - Improvements in Functionality and Usability of Aspen Hydraulics | Solution: Additional pipe flow and fitting correlations
The capability to model a vertical or inclined flow in Aspen Hydraulics is significantly enhanced through the addition of improved and updated correlations for modeling pipes, complex pipe segments, tees, valves,swages, and so on.
Simultaneous edit of multiple pipe segments
In Aspen Hydraulics, an advanced editor now permits simultaneous modification of multiple selected segments in one or more complex pipe models. Specifications are further simplified by allowing a pipe segment property to be applied to multiple segments, including the individual segments in a complex pipe. The editor can select through a filter; for example, you can filter for and apply the change only to vertical segments. Any correlation available in the pipe segment unit operation is available to assign to a specific pipe segment in the complex pipe.
Keywords: Hydraulics, New V7.2, fitting, multiple, pipe
References: None |
Problem Statement: Electrolyte Capabilities in Aspen HYSYS | Solution: Several chemical process calculations involve electrolytic applications. The new capabilities with the help of Aspen Properties in Aspen HYSYS enable the user to analyze and optimize processes involving ionic species, complex ions, and salt precipitation, with strong acids, weak acids, and bases.
Examples of applications for electrolyte process calculation with the Aspen Physical Property System include:
? Sour water stripping
Caustic brine evaporation and crystallization
Acid gas removal
Nitric acid separation
Black liquor evaporation
Note: It doesn't require an additional license to use Aspen Properties in the Aspen HYSYS application.
In order to use electrolyte wizard in Aspen HYSYS please follow the steps below:
1. From the simulation basis manager:
Components/Databank selection Aspen Properties then add only base components without ions
2. Then go to fluid package then select Aspen Properties then select Property Package as Electrolyte NRTL.
3. Then click on Electrolyte Wizard.
4. Then in the next window include the reaction water dissociation.
5. Click the button Get Reactions and make selection by checking box next to reaction then click on OK.
Keywords: Electrolytes, Aspen Propeties, Electrolye NRTL
References: None |
Problem Statement: When you run the installation detail report the quoted cost is not shown in the report. Why? | Solution: The reason for not seeing the cost you specified is you have specified a cost for the Second Control valve for each Loop (bottom of the form) but specified the control valve information (control valve location, valve type, and Remote Control Type) for the primary valve (and not the secondary). If you move these specs to the 2nd control valve, the results will show $20,000 for each valve.
Keywords: None
References: None |
Problem Statement: Error message voltage specified out of range. | Solution: You need to use the voltage for the component which will be consistent with the maximum or minimum or default value in design spec electrical.
If the min value is 6 and max is 13.6 you can not specify something between that. You must use either the minimum or maximum or the default value.
Keywords: None
References: None |
Problem Statement: Can I create a Template in V7.3 and use it in an earlier version of an Economic Evaluation product (like V7.2)? | Solution: No you can not use a Template from V7.3 in any earlier versions of Economic Evaluator products. The Template feature is new to V7.3 and the earlier versions will not recognize it. Any Templates you create in V7.3 will be able to be used in future releases because they will also have the Template feature
Keywords: None
References: None |
Problem Statement: Similar to Aspen Plus behavior, a HYSYS model that uses EO subflowsheet usually generates a number of temporary files in between runs. But unlike Aspen Plus, the temporary files are not in the same folder as the model file.
Where are these files located on my hard drive? | Solution: They are located at the Temp folder of the logged-in users' profile folder, for example, C:\Documents and Settings\songt\Local Settings\Temp.
Keywords: Temporary files, EO, equation oriented, Aspen Properties
References: None |
Problem Statement: Are there any example files describing Liquid - Liquid Extraction in Aspen HYSYS? | Solution: In the attached word document tutorial, a simple liquid-liquid extraction process in HYSYS is explained.
A liquid stream containing 60 mol% water and 40 mol% acetone entering at 25 C, 1 atm, and flowing at a
rate of 1 kgmol/s will be extracted with a pure MIBK stream at the same exact conditions as the feed.
Keywords: Extraction, Liquid - Liquid Extraction, LL
References: None |
Problem Statement: When I use the ATDSP | Solution: s function, I only get one row of data even though the PrSolution table in the Results.MDB file has 49 rows. However, when I use the ATDSQuery function with the stored RW_Solutions query, I do get a dataset with all 49 rows. Why is this?
For example: Use the attached template with the attached Results.MDB file. Put the template in a folder one level beneath where the Results.MDB file is located. For example, put the Results.MDB file in a C:\PIMS folder and put the template in a C:\PIMS\ARW folder. Open the template. The ARW functions should execute and give the results shown below.
Solution
In this case, PIMSDB is defined as:
ATDBPMDB(D2,60,TRUE,Select RESULTS.MDB file as source of report data.,*LAST,*ALL,*ALL,*ALL)
the argument for parameterSolutionIDs is *LAST. Therefore ATDSPSolutions(PIMSDB) only returns 1 record, the other PIMS specific functions (APDSP***) also return data for lastSolution.
If we setSolutionIDs paramter to *ALL, then ATDSPSolutions would return allSolutions on the database.
On the other hand, ATDSQuery() is a general dataset function. It does not filter the dataset by theSolutionID, CASEID, or PeriodID on the database. So it will return all records.
Keywords: APDSP
References: None |
Problem Statement: How to model sea water. | Solution: Modeling of sea water really depends on what process parameters you are trying to get out of the simulation. ThisSolution applies to the case in which a non-electrolytic system is created.
First create a hypo component by cloning the pure water library component. After this, the thermal properties of the cloned water can be modified to match that of sea water.
It should be noted that relevant results can only be extracted from the specific thermal properties that have been modified. It is not expected for the remaining properties to be correct since they will still be pure water properties from the cloning the pure water.
To overwrite density, conductivity, viscosity and specific heat properties of a hypo component (or even the library component), Aspen HYSYS Tabular properties are used. Modifying the heat capacity of the liquid is shown as an example:
1. In Basis Manager, go to current Fluid Package.
2. Go to Tabular tab, and check the Enable Tabular properties box
3. On the left hand side, expand the tree structure of Options, then highlight All Properties.
4. On the right hand side, under Use HYSYS column, check the HeatCapacity(L) box.
5. Expand the Information and click on HeatCapacity(L).
6. Click on the Cmp Prop Detail button, then on the Table tab in the form that appears. Change the units so that they are consistent with the values that correspond to the data available.
7. Click on Clear Data button, and enter the Cp versus T data. It is recommended to have appropriate sea water properties to overwrite the original pure water properties. Since extrapolating from the data points provided can be subjective, it is recommended to use data close to the working range.
8. Click on Regress button. Click on Plots tab to check that results look good. The green line corresponds to the input data, while the red line corresponds to the calculated data to be overwritten. It is recommended to check that the shown properties in a stream can match the sea water properties for those points closer to the data provided.
9. Repeat the process for the other properties to overwrite.
NOTES:
Make sure the component associated with your fluid package is the cloned component, not the original water.
Some physical property data (density, heat capacity, viscosity and thermal conductivity) is included in the attached Excel file. It must be noted that this is just reference data to be used as a start point. It is more desirable to have available data for the physical properties of the sea water to be used in the real life. When this is the case, it is recommended to use this information to create a more realistic model of the sea water.
Keywords:
References: None |
Problem Statement: What are the numerical equivalent of flow regimes in a pipe segment? Flow regimes are reported in numbers in workbook dump. What do the numbers represent? | Solution: Here is list of flow regime numbers and their corresponding names of flow regimes. The list is valid for a pipe segment.
0 = Liquid Only
1 = Vapor Only
2 = Two Phase
3 = Elongated Bubble
4 = Stratified
5 = Slug Flow
6 = Wave Flow
7 = Annular Mist
8 = Dispersed Bubble
9 = Segregated
10 = Transition
11 = Intermittent
12 = Distributed
13 = Three Phase
14 = Unrecognized
15 = Bubble
16 = Mist
17 = Bubbly
18 = Annular
19 = Stratified smooth
20 = Stratified wavy
21 = Slug flow
22 = Bubble flow
23 = Single phase gas
24 = Single phase liquid
25 = Two-phase oil/water
26 = Single phase oil
27 = Single phase water
Please note that the number represents different flow regime for Pipesys. TheSolution document number 112651 shows the list.
Keywords: Flow regime, numerical, number
References: None |
Problem Statement: In strip chart, I have activated variable Vessel Inner Wall Temperatures (Vapor)/(liquid1)/(liquid2) but it is displayed as <empty> even after running the depressuring utility. why? | Solution: If you use heat loss model as 'none', the inner wall temperature result will be 'empty'. Wall temperature is only considered when using the 'Detailed' Heat Loss model, otherwise heat transfer to the wall material is not considered and therefore wall temperature is not reported. It is the only model that divides the HT phenomena along the three different layers involved, inner fluid, wall, outer fluid, and therefore is the only one that can take into account the wall of the vessel. You can test it by simply changing heat loss to 'detailed' on Heat flux page and re running the utility.
Keywords: inner wall temperature, outer, empty
References: None |
Problem Statement: When user is trying to load DBR PVT Pro Engine (Window Vista or Window 7) in the PVT Environment, an error appears saying 'PVTProExtPkg setup is not successful. | Solution: This is likely due to an error in the registry from installation and there is a workaround the user can do to fix the registry key by following the steps:
1. Open the registry by opening the start menu and typing regedit in the Search programs and files field
2. Allow the program to make changes to the registry (requires administrative access)
3. Locate the key HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Hyprotech\Upstream\DBRPVTProPkg\Version 5.0 in the left pane
4. Right click on the string InstallLoc in the right pane and select Modify...
5. The original Data should be C:\Program Files\Common Files\Hyprotech\DBRPVTProPkg\Version 5.0, and it needs to be changed to the correct location of PVTProPkg.exe (which should be C:\Program Files (x86)\Common Files\Hyprotech\DBRPVTProPkg\Version 5.0)
Note: Adjusting the registry can sometimes be dangerous if important keys are changed. Be sure that backups of data exist and that only the changes mentioned above are made.
Keywords: PVT Environment, DBR Pro setup
References: None |
Problem Statement: Where can I check Condenser and Reboiler heat curves? | Solution: Condenser and Reboiler results can be viewed directly inside the Column Environment. To enter the Column Environment, open the column property view and click on the Column Environment button. Once inside the column subflowsheet, double click on either the Condenser or Reboiler PFD icon to open the corresponding property view. On the Performance | Setup tab, the desired variables and curve options can be selected; use the Performance | Tables and Performance | Plots tabs to view the results, as shown below:
Note that the number of intervals can be changed as per user requirement; properties are updated automatically in both the Tables and Plots pages.
Keywords: heat curves, column, condenser curves, reboiler curves
References: None |
Problem Statement: This document will help user set up DBR Amine package for amine process modeling. | Solution: The attached document gives step-by-step instructions on setting up DBR Amine package in Aspen HYSYS.
Keywords: Amine, DBR Amine
References: None |
Problem Statement: Absorber column using DEA and Amine Package fails to solve when the feed rate is changed in a large step. | Solution: When the feed rate (eg, sour gas molar flow) is changed in a large step the solver encounters oscillation during convergence. To prevent instability change the damping factor from a default value of 1.0 to a smaller value typically in the range of 0.2 - 0.4.
The damping factor can be found via the Parameters tab and Solver page of the column PFD (see the attached screenshot).
The following guidelines are also important when configuring the column using Amine Package.
? Ensure that the gas to the Contactor is saturated with water.
Use actual, not ideal, stages.
Change stage efficiencies for CO2 and H2S from their default values of 1.0 to suggested initial estimates of 0.3 for CO2 and 0.6 for H2S.
Use calculated efficiencies for subsequent absorber runs.
Keywords: Amine absorber, Damping Factor, Amine Package, DEA, convergence
References: None |
Problem Statement: How do I prevent the error message the polytropic head factor beign at lower limit or at higher limit? | Solution: The Polytropic Head Coefficient of the compressor has lower and upper limits as 0.6 and 1.4. When the calculation of Polytropic Head Coefficient reach 0.6 and 1.4 limit, the Polytropic Head Coefficient will be set to 0.6 and 1.4. If you want to make sure the Polytropic Head Coefficient calculation not reach the limit, you should set the variables such as pressure and temp to reasonable value based on your process.
If you want to suppress the warning message, you can go to Tools->Preferences->Trace Window and check Trace Inactive.
Keywords: warning, error, settings, calcualtion
References: None |
Problem Statement: What is the assay data basis used for oil characterization in Aspen HYSYS?
This | Solution: is intended to clarify the assay basis used for molecular weight, density and viscosity curves (the dependent or independent) in the oil manager.Solution
The assay basis for distillation data can be selected from the drop down options. This can be selected as liquid volume, mass or mole basis. But when you enter other properties data such as density, molecular weight or viscosity, there is no separate drop down option for the basis. The reason for this is that Aspen HYSYS uses the same basis selected for the distillation curve. There is no need to select basis for the properties curves. In other words, you cannot select a separate basis for the property data.
Keywords: Oil Manager, Assay Basis
References: None |
Problem Statement: How to choose the right RVP method and why it is not solved sometimes and shows empty. | Solution: Aspen Hysys provides different methods to calculate the RVP value. The choice of methods is dependent on your applications and stream conditions. Please refer the following information to choose the correct method.
1. HYSYS RVP Method
The RVP calculation in the HYSYS Cold Properties and Boiling Point Curves utilities is defined as the pressure (at 100?F - this method does not depend on the RVP reference temperature specified in the extension) at which the vapour volume will be 4 times as much as the liquid volume (i.e. the pressure at which 80% of the stream by volume is vapour at 100?F). (This is the same as the ASTM D323-73/79 method.)
Note that the HYSYS RVP method is always done on a dry basis (i.e. any water content of the stream is ignored), and always uses the HYSIM Flash. (i.e. the flash method that is used if HYSIM Flash is selected on the Stab Test tab of the Fluid Package, within the Simulation Basis Environment.)
2. API 5B1.1 (Naphtha)
This method is useful for gasolines and finished petroleum products but not crudes or oxygenated blends. TVP is correlated against RVP, Temperature and the slope of ASTM D86 distillation curve at the 10% point. This extension solves the corrected version of the API databook equation of the correlation, for the RVP.
A recognized limitation of the API Naphtha method is that the D86 10% point can have a similar gradient for vastly different streams.
This method is the default in other simulation tools and is at the other end of the RVP spectrum from the HYSYS 4:1 method (10% vapour evolution vs. 80% vapour evolution). This is why default RVP methods cannot be compared across process simulators.
3. API 5B1.2 (Crude)
Generally used for condensate and crude oil systems, (typically wide boiling pre-processed hydrocarbons). TVP is correlated against RVP and Temperature. This extension solves the API databook equation of the correlation for RVP.
The correlation is based on very old data from 1959 but is popular with Engineers for quick and dirty calculations.
4. ASTM D323-82
This is the standard and accepted procedure for RVP lab measurement. Liquid hydrocarbon is saturated with air at 33?F and 1 atm pressure. Since the lab procedure does not specify that the test chamber is dry, the air used to saturate the hydrocarbon is assumed to be saturated with water.
This air-saturated hydrocarbon is then mixed with dry air in a 4:1 volume ratio, and flashed at the RVP reference temperature such that the total volume is constant (since the experimental procedure uses a sealed bomb). The gauge pressure of the resulting mixture is then reported as the RVP.
5. ASTM D323-73/79
Otherwise known as P323. The pressure is adjusted at the RVP reference temperature until the vapour:liquid ratio is 4:1 by volume. This method is essentially the same as the default HYSYS method, except it is not on a dry basis and the flash method used is the same as for the rest of the flowsheet.
6. ASTM D4953-91
This method was developed for oxygenated gasolines. It is the same as D323-82 method except that everything is on a completely dry basis - i.e. the air is not saturated with water.
7. ASTM D5191-91
This was developed for gasolines and gasoline-oxygenate blends as an alternative to the D4953-91 method. In the experimental procedure, the hydrocarbon is saturated with dry air then placed in an evacuated bomb with five times its volume. The total pressure is then converted to a dry vapour pressure equivalent (DVPE) and then reported as the RVP.
In this extension the method used is to mix near vacuum air at 0.01 psia and 100?F with hydrocarbon at 1 atm and 33?F in the ratio 4:1. This is then flashed at constant volume at the RVP reference temperature. The pressure is then converted to the DVPE and reported as the RVP.
Summary: Hysys RVP method is done on a dry basis. This method is same as ASTM D323-73/79. However, ASTM D323-73/79 is for wet basis.
API 5B1.1, ASTM D4953-91, ASTM D5191-91 should be for gasolines or oxygenated gasolines.
API 5B1.2 (Crude) uses that TVP is correlated against RVP and Temperature. This extension solves the API databook equation of the correlation for RVP. The correlation is based on very old data from 1959 but is popular with Engineers for quick and dirty calculations.
ASTM D323-82 is air saturated hydrocarbon with dry air in a 4:1 volume ratio and flashed at RVP reference temperature.
API 5B1.2, ASTM D323-73/79 and ASTM D323-82 should be working for most of crudes and HC.
However, each method has the applicable ranges.
API 5B1.2 has applicable TVP range from 0 to 25 psia. So if your stream is out of API 5B1.2 range, RVP value using API5B1.2 will show empty.
ASTM D323-82,D4953-91,ASTM D5191-91 cannot have vapor at 33?F and 1 atm.
Sometime, numerical solver cannot reach aSolution in default maximum iterations. It also causes the results show empty.
Keywords: RVP
References: None |
Problem Statement: How to setup a yield shift reactor? | Solution: Yield Shift reactor (YSR): The Yield Shift reactor (YSR) unit operation supports efficient modeling of reactors by using data tables to perform shift calculations. For example if the reactor output is available at three different temperatures say 500C, 600C (base data) and 700 C, then using the linear relationship, HYSYS YSR will calculate the reactor output (Yield) at all temperature.
Information required to run YSR:
a. Product Yield at Base condition and also at a different condition to calculate the shift (To calculate the slope you need information for two points).
b. Feed stream information
c. If a DUTY stream is added then product temperature or duty is also needed
Sample File: YSR will calculate the reactor (Gas Cracker) output at different temperature and pressure. The plant data for the reactor output is available at
A. 600C / 500kPa (at Base Temp and Press)
B. 500C / 500kPa (at Base Press and low Temp)
C. 700C / 500kPa (at Base Press and high Temp)
D. 600C / 400 kPa (at Base Temp and Low Press)
E. 600C / 600 kPa (at Base Temp and high Press)
Setup Steps:
1. Open a new Hysys file. Add fluid package (Peng Robinson) and components (Ethane, Hydrogen, Methane, Ethylene and Propane). Go to Simulation environment (Cntrl + L).
2. Add the YSR from object pallet F4. Also add a feed stream Feedin with all information(condition (600C, 500kPa), flow rates (100kgmole/hr) & composition(Ethane =1.0 and Rest zero).
3. Design | Connections: Connect the YSR inlet stream Feedin and outlet stream Product out. Connect also an energy stream YSR-Q to calculate the duty.
4. Design | Parameters: Enter the pressure drop across YSR 50kPa
5. Model Config | Design Variable: In this sample, the feed temperature and feed pressure would be changed to see the affect in the YSR output. Add ?Feedin? temperature and Feedin pressure as variable. Also in addition to base data (600 C and 500kPa), the available data from the plant is at 500 C and 700 C. Enter 2 dataset for Feedin temperature. Similarly, the available data set from the plant is at 400kPa and 600kPa in addition to base data (600 C and 500kPa ). So enter 2 data sets for pressure as well.
6. Composition Shift | Design Data | Base: Enter design base temp (600C) and design base pressure (500kPa). Select the radio button to use yield only option. Enter the feed Feedin and product Productout composition at base condition (600C / 500kPa).
7. Composition Shift | Design Data | Datasets: Enter the feed and product information at the condition mentioned in B, C, D and E above.
8. Composition Shift | Base Yield: The base yield will be automatically calculated.
Note1: If you get any inconsistency error, please erase the Base yield values and press the solver active button. The YSR is ready to be solved except it needs the product stream ProductOut temperature. Either enter it manually, on the ProductOut stream or it can also get calculated based on reactor temp / feed temperature.
The next few steps below mentions how product temperature can be related with feed / reactor temperature.
9. Property Shift | Properties: Enter Reactor temp as 600 C as base value.
10. Property Shift | Design Data | Base: Enter the base condition temperature = 600 C and Pressure = 500kPa
11. Property Shift | Design Data | DataSets | Design Variable | Feed Temp : Enter the Product temp = 500C and 700 C for feed temp of 500C and 700C
12. Property Shift | Design Data | DataSets | Design Variable | Feed Press : Enter the Product temp = 600C for feed press of 400kPa and 600kPa
13. Property Shift | Results | Total Extent: Export the current value to spread sheet.
14. Go to spreadsheet and export the temperature back to the product stream ProductOut
Note2: If the reactor output is non linear then a spreadsheet may be used to generate multiple data set. The spreadsheet output may be directly linked with HYSYS YSR using drag and drop. For drag and drop, right click on the cell (HYSYS spreadsheet), keep the right click pressed. Drag the mouse cursor to the YSR | Composition Shift | Design Data | Data Sets | releases the right click on the Product Dataset cell.
Keywords: YSR, yield, yield shift reactor, reactor, sample
References: None |
Problem Statement: How can I add a solid component in Aspen HYSYS? | Solution: Solid components can be added in two different ways in Aspen HYSYS: as a component from the databank or as a Hypothetical component if its properties are known. The guidelines are provided below.
1. Add a component list on the Components tab of the Simulation Basis Manager window in the Basis environment. The option View Filter should be selected, followed by Use Filter and then Solids. All the solid components available in Aspen HYSYS databank will be displayed and can be added to the component list.
2. Add a hypothetical group on the Hypotheticals tab of the Simulation Basis Manager window in the Basis environment. Click the option Add Solid.
Keywords: solid, component, hypothetical, hypo, basis
References: None |
Problem Statement: When I double-click on a unit operation or stream icon in the PFD window, Aspen HYSYS does not appear to respond. | Solution: Aspen HYSYS may appear to not respond because the corresponding window was already open in another location within the application desktop (you can verify this by selecting Windows | Arrange Desktop from the main menu). The easiest way to resolve this problem is to first of all close all windows (choose Windows | Close All from the main menu) and then click PFD icon on tool bar to view simulation. Subsequently, all streams and unit operations will be visible after double clicking on the PFD.
Key words
unit operation, stream, respond, view, open, double-click
Keywords: None
References: None |
Problem Statement: What does the Apply smart bulk fitting on molecular weight and mass density option do? | Solution: The Apply smart bulk fitting on molecular weight and mass density checkbox can be found on the Light-Ends Handling & Bulk Fitting Options window as shown below. This form is instantiated via the Assay view available in the Aspen HYSYS oil manager.
In most circumstances, activating the Apply smart bulk fitting on molecular weight and mass density checkbox will result in the most reasonable fit for mass density and molecular weight input curves. The underlying rules for this implementation are given below.
For either molecular weight or mass density curve, if the input is less than 95%, only the extrapolated tail will be adjusted to match the user specified bulk value. If the input is equal or more than 95%, the entire curve will be adjusted to match the bulk value. This is done because the data you input should be the most reliable data available, and should not be adjusted to match the bulk value as long as there is enough extrapolated data to adjust.
When only the tail is adjusted, HYSYS ensures that the upper end point will be no lower than the linear extrapolation of the last two points. This means that in most cases, the extrapolated portion of the curve will be concave (i.e., the curvature will be positive). If the bulk value is given such that the extrapolated values are below the linear extrapolation values, the following warning message will be issued and the whole curve will be adjusted:
Curve is normalized due to the inconsistency between the supplied curve and bulk data
Aspen HYSYS also imposes a maximum value for both the molecular weight and mass density. For molecular weight, the maximum value is ten times the bulk value. For mass density, the maximum value is three times the bulk value. If the maximum value is reached before matching the bulk value, the following warning message will be issued and no further adjustment is done:
No exact match, upper limit reached
If a bulk molecular weight or mass density is given without a corresponding input curve, the whole calculated curve is adjusted.
Since the 95% input is an artificial dividing line to decide if only the tail is adjusted or the whole curve is adjusted, there is a chance to have a sudden change in the behavior if the input curve crosses this dividing line. If this happens, you can overcome the problem by manually setting the bulking fitting options without using the smart option. To achieve similar results, set the Head Adj Wt and Main Adj Wt to zero, set the Main % to the desired tail starting percent, and leave the Tail Adj Wt to its default value of 1.0.
Keywords: oil, manager, assay, head, tail, bulk, property, MW, density, mass, weight, molecular, light, ends
References: None |
Problem Statement: In a column property view | Performance tab | Plots datasheet, and under Tray by Tray Properties, if we select Light/Heavy Key, and click on View Table button, we get Profile Table: Light/Heavy Key Profile dialog. Furthermore, if we click on Properties button located at the lower left corner, we get the Properties View: Light/Heavy Key Profile dialog. All three dialogs are shown on the screen shot.
On the Profile Table: Light/Heavy Key Profile dialog, the values of Light/Heavy Key are shown for individual phases. How are the values of Light/Heavy Key calculated in HYSYS? | Solution: First, we give a brief discussion of light and heavy keys in distillation column design. For binary distillation, the light key refers to the component with lower boiling point, and the heavy key is the second with higher boiling point. The concept can be used for multi-component mixtures. In these cases, we partition the components into two groups according to their volatilities, light components and heavy components. The light key should be the least volatile component (the one with highest boiling point) in the light components group. The heavy key should be the most volatile component (the one with lowest boiling point) in the heavy components group. For example, we have component A, B, C, D, and the volatility decreases from A through D. For this mixture, A and B form the light components group, and C and D form the heavy components group. The light key is B, and the heavy key is C. Multiple components can be combined in each of the two groups as the light key and heavy key.
The ratio of the specified fraction (mole, mass or liquid volume) of the light key and the heavy key is called relative volatility. Relative volatilities can be calculated for each of the existing phases on the stages in a distillation column. This is how the Light/Heavy Key Profile in HYSYS is calculated.
On the next screen shot, we can find the relative volatilities in vapor and liquid phases for the condenser and reboiler. We also calculate the relative volatilities in spreadsheet unit operation, SPRDSHT-2 for column, REGENERATOR.
In this column, CO2 is selected as light key and water is the heavy key. The relative volatilities are based on mole fractions. For example, the ratio of mole fractions of CO2 and water in the vapor phase out of condenser is calculated as 1.856 in cell D2 matching the value in the Light/Heavy Key Profile for the column.
The attached case file is modified from sample case G-1, and saved using HYSYS 2006.5.
Keywords: Light key, heavy key, light/heavy key profile
References: None |
Problem Statement: TheCase Security option doesn't appear in Tools menu for the case protected with password but it appears for a new case or a case that it not password protected. Why? | Solution: You need a Master password to be able to access the Case Security features in a password protected case file. If you supply a user password instead of a master password, HYSYS will not show Case Security option to
the user.
When opening a case that is password protected, you have two options:
1) Enter the User Password: This allows you access to the case, but you cannot make any changes to the security settings (note that there is no Tools | Case Security menu item if you open a case with the User Password).
2) Enter the Master Password: This allows you access to both the case and security settings. Once a case is opened in this manner, the expiration date, type of security and User Password can be modified as desired.Also, If the
current date is past the expiration date, this is the only way to open the case.
Keywords:
References: None |
Problem Statement: Why is the cooler duty not equal to mCp*DeltaT? | Solution: The heat flow in the cooler is calculated based on the enthalpy difference between the inlet and the outlet and not using the specific heat (cp). The enthalpy is calculated from the fluid state (Temperature, pressure and composition) using the specific property method selected. The calculated heat flow is then molar flowrate* (Enthalpy out -Enthalpy in).
Keywords: Heat capacity, Cooler duty, Enthalpy, Heat flow.
References: None |
Problem Statement: How is the reflux ratio defined in full reflux tower? | Solution: In case of total reflux, reflux ratio (RR) = R / V, where R is the reflux molar flow rate and V is the molar flow vapor rate.
Keywords: reflux ratio, total reflux
References: None |
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