Psychrometric calculations

The ability to perform psychrometric calculations forms a basis on which all drying models are built. One principal... 

In psychrometric calculations we consider thermodynamics of three phases inert gas phase, moisture vapor phase, and moisture liquid phase. Two gaseous phases form a solution (mixture) called humid gas. To determine the degree of complexity of our approach we will make the following assumptions ... 

Free software available on the Internet for humidity and psychrometric calculations is of limited value for practical drying calculations such as dryer flowsheet calculations since drying problems are much more complicated than simple psychrometric calculations. 

Important note Usually, unless otherwise specified, the psychrometric calculations refer to the normal atmospheric pressure of 101.325 kPa (or 1 bar in the recent convention), but obviously calculations can also be achieved for other total pressures. 

T. Kusuda, Algorithms for Psychrometric Calculations (Skeleton Tables for the Thermodynamic Properties of Moist Air) , Building Science Series 21, National Bureau of Standards, Washington, D.C., 1970. 

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