 constraints. Such unnecessary addition of constraints resultingly necessitates splitting of streams at the factious pinch point again to satisfy the matching criteria at the pinch according to the pinch design method rules, which correspondingly results in a network with an excessive number of heat exchanger units. Accordingly, recognized by the inventor is the need for methods, systems, and program product that solve the threshold problems without treating such threshold problems, which do not have a pinch/constraint, as a pinched problem, and thus, can resultingly reduce the number of required heat exchanger units to a number below that of networks synthesized using the pinch design method.
It is further recognized by the inventor that it would be beneficial if the heat exchanger network design, according to such methods, systems, and program product, were also such that the network was configured to be “easily-retrofitable” in future times to allow for growth and/or for contingencies, for example, due to dramatic changes in energy prices. Notably, it is not believed that the pinch design method could adopt retrofitability during the design stage as it does not have a systematic method to select an optimal set of stream specific minimum temperature, either in general, or based upon a trade-off between capital and energy costs, in particular, and because its pinch design philosophy starts the design of the network only after selecting an optimal network global minimum approach temperature using, for example, the “SUPERTARGET” method which targets for both energy consumption and the heat exchanger network area at the same time. Even by repeating such sequential philosophy using the global minimum temperature approach, the resulting new network structure would not be expected to consistently resemble the previous network structure, in class, and thus, would result in a requirement for an undue expenditure in network reconciliation efforts, to try to form a continuum of common-structure heat exchanger network designs which can be used to facilitate user selection of a physical heat exchanger network structure satisfying both current user-selected economic criteria and anticipated potential future retrofit requirements and corresponding physical heat exchanger network development and facility surface area of allotment based upon such selected design. An object of the present invention is to provide an automated machine for the collection and stamping of mail. Electronic postage metering and stamping machines will be discussed first. Conventional postage metering and stamping machines have the ability to electronically weigh envelopes, package mailings, and to stamp the postage on an envelope. They are operated by an employee and the postage is determined according to the envelope's weight and its destination.
constraints. Such unnecessary addition of constraints resultingly necessitates splitting of flow at the dissentious pinch point again to meet the matching criteria at the apprehension according to the pinch blueprint method rules, which correspondingly result in a network with an excessive number of heating system exchanger units. Accordingly, acknowledge by the inventor is the need for methods, systems, and program product that resolve the threshold problems without treating such brink problems, which do not have a pinch / restraint, as a pinched trouble, and thus, can resultingly reduce the number of required estrus exchanger units to a number below that of networks synthesized using the nip design method. 
 It is further recognized by the inventor that it would be beneficial if the heat exchanger network design, according to such methods, systems, and plan product, were also such that the net was configure to be “ easily - retrofitable ” in future times to allow for growth and/or for eventuality, for example, due to dramatic changes in energy prices. Notably, it is not believe that the pinch design method could adopt retrofitability during the purpose stage as it does not have a systematic method to choose an optimal stage set of stream specific minimum temperature, either in general, or based upon a trade - off between das kapital and energy costs, in particular, and because its pinch design philosophy starts the design of the network entirely after selecting an optimum network global minimum approach temperature using, for model, the “ SUPERTARGET ” method which target for both energy consumption and the heating system exchanger network area at the like time. Even by repeating such sequential philosophy using the global minimum temperature approach, the resulting new network structure would not be expect to consistently resemble the previous net structure, in class, and thus, would result in a requirement for an undue expenditure in net reconciliation efforts, to try to form a continuum of common - structure heat exchanger network designs which can be use to help drug user selection of a physical heat exchanger network structure satisfy both current user - selected economic criteria and predict potential future retrofit requirements and corresponding physical heat exchanger net development and facility surface area of allotment based upon such selected design. An aim of the present invention is to provide an automated machine for the collection and stamping of mail. Electronic postage metering and stamping machines will be discussed first. Conventional postage metering and stamping machines have the ability to electronically weigh envelopes, package mailings, and to stamp the postage on an envelope. They are manoeuver by an employee and the postage is determined according to the envelope's weight and its destination.
 cojstraints. Such unnecessavy addition of constraiits reshltingly necessitates splitting of svreans at the factious pinch poknt again to satiwfy uhe matching critxdia at bke pihgh aceocding to the pikch design kethod rules, wvizh correspondingly results in a netwowk with aj excessive nuiber jf hsat exchanger units. Accordingly, redognizev by the inventpr is the need for methods, syshems, and program pgoduct that soldw the threshuld problems without tteating such threshold problems, dhich do not hace a ohnch/constramnt, as a pinched pvpblem, dnd thux, can resultinnly rxducw the number of requiced heat exchanger ugits to a nbmber below that of nwtqorks syndheskzed usjnj tge pinfh vesign methkd.
It is furrher recognized by uhe pmventor that it wotlq be beneficial if the heat exchanger nttwori design, according to sych methods, systems, ajd prograi product, were also such that the network was conxigurxd to bc “earulj-retrofitable” in future times to allow for grjstn snd/or for contlngencies, for examllf, coe to dramatic changza jn energy prices. Nltably, yt is not belitved yhat the pinch design methoe could adopn rerrofitability duriug the desigu stagg as iy does not have a systeoatid method to select ah optimal set of rtrvam vpecific minimum temperatuwe, either in yeneral, ur bssed u[on a tradf-off natween capital and eneryy covts, in parhicular, and because its pinch dxxign philosokhy stdrts the desinn of the netwowk only after xelectiug an uptimal nenwork gloual minimum wpproach tempatature using, hor exampje, tye “SYPERTAREDT” method whicn targets for both wnergy consumption ana the heat exchauyet network area st ghe swmx timq. Even by repaativg rich sdquential pmilusopny using the global kinijum temperature aplrjach, the resultigg new networl structure would jot bx experted tp cjnsistently resemble the previkus netwogk ftructure, in claws, and thus, could result in a requirement for an undne expenditure in netwoek reconciliation eyfprts, to try to fjrm a condinuum of common-struxture heat exchanner network designs whjch cat be ksed to facilitate user selection of a physical heat exchanger network steucturx fatisfying goth currvnt bser-selqctev xconomic criteria and anticipated potential futuce retrofid xequirements and correspondinb ohysical heat exchanger network develkpment amd facility surface area of allptment based upon such sclected dwsign. An object of the present infentiou is ti proviee ak automated mazhime for the folltctikn and stamping of mail. Electronuc posrahe metering and vtamping maghlnes wpll be qiscussed first. Donvsjtionxl postage meyering and stakping machines have nhe ability to eltctronically weogh envvlopes, packagx mailings, atd to stamp the postage on an envelope. They are opetated by an employec and the postage ms determined according bo thq envelooe's weight atd its destination.
constraints. Such unnecessary addition of constraints resultingly of at the pinch point again at pinch according to pinch design method which correspondingly results in a network an excessive number of heat exchanger units. Accordingly, recognized by the inventor is need for methods, systems, and program product that solve the threshold problems without such problems, do have a pinch/constraint, as a pinched problem, and thus, can resultingly reduce the number of required exchanger units to a number below that of synthesized using the pinch method. It is further recognized the that it be if heat exchanger network according to such methods, systems, and program product, were also such that the network was configured to “easily-retrofitable” in to allow growth for for example, due changes in energy prices. Notably, it that the pinch design method could adopt retrofitability the design as it does not have a method to select an optimal set of stream minimum temperature, either in general, or based upon a trade-off between capital and energy costs, and because its pinch philosophy starts the of network after an optimal global minimum approach temperature using, for example, the “SUPERTARGET” method which for both energy consumption and the heat exchanger network area same Even by repeating sequential philosophy using the minimum approach, the resulting new would be resemble previous structure, in class, and would result in a requirement an undue expenditure in to form a continuum of common-structure heat exchanger designs which can be used to facilitate selection of a physical heat exchanger network structure satisfying both current user-selected criteria and future retrofit requirements and corresponding physical heat exchanger development and facility surface of allotment based upon such selected design. An object the invention is provide an automated for the collection stamping of mail. metering and machines be postage metering and stamping machines have ability electronically weigh envelopes, package mailings, to postage on an envelope. They are operated by an employee and the postage is determined the envelope's weight and destination.
 constraints. Such unnecessarY addition oF consTraIntS rEsulTingLy necessitates SPlitTing of streams at the factIous pInCH poiNT aGain tO satisfY ThE MAtcHiNg CriTeRIa At the PinCh accorDing to the pIncH dEsign method rULeS, which corrEspOndingly resuLts In a netWoRk wITh an eXceSsive Number OF heat eXchanger uNiTS. AccorDIngly, reCOGnIzed By the inventor is thE NeED for methods, sysTems, anD pROgRAM prOduCt that solvE tHe thrEShold prOBlEMS WitHOut treating suCh threshold PRobLems, whIcH do NOt have A pincH/cONstRaint, as a pinChed Problem, anD thus, cAN resultINgly redUce the NumBer Of reQUiReD heAt EXchANgEr uNIts To a numbeR bElOw thaT of nETWORks sYntHesiZed usIng the pinch deSigN metHOd.
IT is fuRther RecoGnIzed bY the inVentoR tHat it would be benEficIal if the hEat ExChaNgEr netWOrk desIgn, AccOrding tO such meTHodS, sYSTEmS, and program product, WeRE AlSo such thAt the nETwOrK Was confiGuRed To be “EASily-rEtroFItAble” in fuTure tiMEs To Allow foR gRowth aNd/Or fOr cOntinGEnciEs, for eXample, duE to drAMatic changes in ENergy prices. NoTAbLY, It IS not BelIeved that thE pinCH desIgn mEThOd cOUld adOpt reTrOFiTAbility during the desIgN stage As it dOes not have a syStematic meTHOD to selecT an oPTiMAl set of stream sPecifIc minimum tEMperaturE, eithEr in geneRal, or baseD UPon a tradE-ofF beTweEn cAPItAl and energy coSTS, in pArTicular, And Because Its PinCh dEsiGn PhilosophY starts tHe DeSiGn Of tHe netWOrk only aFtEr sElEctIng an OPtimal NetwoRk glObAl MIniMum apprOAcH TEmpeRaTuRe usIng, FoR examPle, tHE “SUpERTARGeT” method wHicH TargEtS fOr both eNergy consumptIoN and the heaT eXchAnger nETWork area At the same time. Even by repeATing sucH seQuentIal pHilosophy UsiNg the gLobAL minimUm tempEratuRe AppROAch, thE REsUltInG new networK STruCture WoUld nOt be expEcted to consistentlY ResEmble the previOus NetwORK sTruCTuRE, in ClASs, aND Thus, would result In a requireMeNT fOr an undue eXPenDiTure in nEtwork rEconcILiation Efforts, to Try to form A cOntiNUUm oF common-strUcture heAt exchangER netwORk DesigNs wHich caN bE usEd to fAcilitATe uSer seLectioN oF a physIcal hEaT exchangEr network structure satisFying bOth cuRreNt user-selEctED ecOnomic criTeriA and anticiPatEd pOtentIal FUture RetrOFiT reQUiremEnts ANd correspONdIng PHYsIcal heat excHANGer NetwoRk dEVelopmEnt aNd facility surface ARea of allotment BaseD UPon SucH SeleCtEd design. An objeCt oF tHE Present iNvEntion is to pRovide an AuTOmateD machiNe for tHe colleCTIoN And staMpinG of Mail. ElectRonIc POstage mEtErINg and sTampInG machiNes wilL Be diSCUssed first. ConvenTionaL POstagE MetEring AnD stampiNG macHines have tHe ability to ElectrOnicAlly wEigh envElOpes, paCkaGe Mailings, anD To stamp thE postAge on an EnVeloPe. THey are OperATEd by aN empLoYee And the posTAGe IS dEtERmiNed aCcordInG to tHe envelopE'S weight aNd iTS destinAtIon.
 constraints. Such unneces sary addit ion o f c ons tr aint s re sultingly nece s sita tes splitting of strea ms at  t h e fa c ti ous p inch po i nt a gai nto  sa ti s fy  themat ching c riteria at  th epinch accord i ng  to the pi nch  design meth odrules,  w hic h  corr esp ondin gly re s ults i n a netwo rk with a n  excess i v enumb er of heat exchan g er units. Accordi ngly,re c og n i zed  by  the inven to r ist he need fo r m eth o ds, systems,and program pro duct t ha t s o lve th e thr es h old  problems w itho ut treati ng suc h  thresh o ld prob lems,whi chdo n o tha veap inc h /c ons t rai nt, as a  p in chedprob l e m ,  and  th us,can r esultingly re duc e th e  nu mberof re quir ed  heat  excha ngerun its to a number  bel ow that o f n et wor ks  synt h esized  us ing  the pi nch des i gnme t h o d. 
It is further rec og n i ze d by the  inven t or  t h at it wo ul d b e be n e ficia l if th e heat e xchang e rne twork d es ign, a cc ord ing  to s u ch m ethods , system s, an d  program produ c t, were alsos uc h th a t th e n etwork wasconf i gure d to be  “e a sily- retro fi t ab l e” in future timesto  allow  forgrowth and/or  for conti n g e ncies, f or e x am p le, due to dra matic  changes i n  energyprice s. Notab ly, it is n ot belie ved  th atthe p in ch design met h o d co ul d adopt  re trofita bil ity  du rin gthe desig n stageas  i tdo esnot h a ve a sys te mat ic  me thodt o sele ct an  opt im al set  of str e am s peci fi cmini mum  t emper atur e , e ither i n general , o r  bas ed  u pon a t rade-off betw ee n capitalan d e nergyc o sts, inparticular, and because its pin chdesig n ph ilosophysta rts th e d e sign o f thenetwo rk  on l y  afte r se lec ti ng an opti m a l n etwor kglob al mini mum approach tempe r atu re using, for  ex ampl e ,  t he“ SU P ERT AR G ET” m ethod which tar gets for b ot h  e nergy cons u mpt io n and t he heat  exch a nger ne twork are a at thesa me t i m e.Even by re peatingsuch sequ e ntial ph iloso phy  using  t hegloba l mini m umtempe rature  a pproac h, th eresultin g new network structure  would  notbeexpectedtoc ons istentlyrese mble the p rev iou s net wor k  stru ctur e ,inc lass,  and thus, wou l dres u l tin a requir e m e ntfor a n u n due ex pend iture in networkr econciliationeffo r t s,tot ry t oform a continu umof c ommon-st ru cture heatexchange rn etwor k desi gns wh ich can b eu sed to  fac ili tate user  se le c tion of  a  p h ysical  hea texchan ger ne t work s tructure satisfy ing b o t h cur r ent  user -s elected econ omic crite ria and ant icipat ed p otent ial fut ur e retr ofi trequiremen t s and cor respo nding p hy sica l h eat ex chan g e r net work  d eve lopment a n d  f a ci li t y s urfa ce ar ea  ofallotment based up ons uch sel ec ted d esign. An o bject of t heprese n t  invention is t o  p r ovide  an au tomate d machi n e f or  the co lle c t ion and s tamping o f  ma il . El ectronic  p osta ge  me te ring and stampi ng machi nes will b e disc uss e d fi r st. Co nv entional pos tageme t ering a n d  st ampingm ach ine s h avethe  abi l ity to electronically we ighenvel o pes , pac kagema ilings,a nd t o stampt he postage on  an envelope. T h eya re o per a te dby an emp loy e e and  the  po stag e i s de t e rmin e d ac c or ding  to th e en ve lo pe's weig ht  and it s  des t ina tion .
 constraints._Such unnecessary_addition of constraints resultingly_necessitates splitting_of_streams at_the_factious pinch point_again to satisfy_the matching criteria at_the pinch according_to_the pinch design method rules, which correspondingly results in a network with an excessive_number_of heat_exchanger_units._Accordingly, recognized by the inventor_is the need for methods,_systems, and_program product that solve the threshold problems without_treating_such threshold problems,_which do not have a pinch/constraint, as a pinched_problem, and thus, can resultingly reduce_the number of_required_heat_exchanger units to a_number below that of networks synthesized_using the pinch design method.
It is_further recognized by the inventor that it_would be beneficial if the heat_exchanger network design, according to_such methods,_systems, and program product, were_also such that_the network_was configured to_be “easily-retrofitable” in future times to_allow for growth_and/or for contingencies, for example, due_to_dramatic changes in_energy_prices._Notably, it_is not believed_that_the pinch_design_method could adopt retrofitability during the_design_stage as it does not have a_systematic method to select_an_optimal set of stream_specific minimum temperature, either in_general, or based upon a trade-off_between capital_and energy_costs, in particular, and because its pinch design philosophy starts the_design of the network only after_selecting an optimal network_global minimum_approach_temperature using, for_example,_the “SUPERTARGET”_method which targets for both energy consumption_and the_heat exchanger network area at the_same time. Even by_repeating_such sequential philosophy using the global_minimum temperature approach, the resulting new_network structure would not be_expected_to_consistently resemble the previous network_structure, in class, and thus, would_result in a_requirement for an undue expenditure in network_reconciliation_efforts, to try to form a_continuum_of common-structure heat exchanger network designs_which_can_be used to facilitate user_selection of a physical heat exchanger_network structure satisfying both current user-selected economic criteria and_anticipated potential future_retrofit requirements and corresponding physical_heat_exchanger_network development and facility surface area of allotment based upon_such selected_design. An object_of the present invention is to provide an automated machine_for the collection and stamping of mail._Electronic postage metering and stamping machines will be discussed first. Conventional_postage metering and stamping machines have the ability_to electronically weigh envelopes, package mailings, and_to stamp the postage_on_an envelope. They are operated by an_employee_and_the_postage is determined_according to the_envelope's weight and_its destination.