WaterSteamPro(R)
Calculate properties of moist air
Annotation
In this file you find the example of usage functions for calculating properties gases and it's mixtures to calculate properties of moist air.
WaterSteamPro is a certified program for calculating properties of water and steam.
New versions and online documentation available in the www-site of the WaterSteamPro: http://www.wsp.ru
Import units definitions and WaterSteamPro dimensions functions Source data
Air temperature: Air pressure: Air humidity: Calculate properties of dry air
1. Use next dry air components:
• nitrogen volume: • oxygen volume: • argon volume: • hydrogen volume: • CO2 volume: 2. Let's create gas - mix of above mentioned components
• get id of new gas: • add volumes of gases to gas (with molar specific mass): 3. Get molar mass of dry air: 4. Calculate caloric properties of dry air Calculate properties of moist air
1. Maximum pressure of steam at air temperature
At temperatures below triple point it's calculated on sublimation curve, above triple - on saturation curve. 2. Mass humidity of air
Calculate as ideal gas: 3. Create moist air gas
• get id of new gas: Create mixture from fact that dair kg of steam are given in 1 kg of dry air. So use mass functions: 4. Molar mass of wet air: 5. Calculate caloric properties of wet air: 6. Volume (molar) oxygen part in wet air: 7. Mass oxygen part in wet air: 8. Remove unused gas Plot the graphs
Help function for calculate volume part of oxygen in wet air. Algorithm is described above. Remove all gases created in this document
• remove gases:
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