Dehumidification of Air-Water Vapor

If a warm gas-vapor mixture is contacted with a cold liquid so that the humidity of the gas is greater than that at the gas-liquid interface, vapor will diffuse toward the liquid and the gas will be dehumidified. In addition, sensible heat can be transferred as a result of temperature differences within the system. For air-water mixtures (Le = 1) contacted with cold water, the methods of analyzing water cooling presented in the preceding section apply with only obvious modifications. The operating line on the // versus TL diagram will be above the equilibrium curve. Likewise, 

The problems at the end of each chapter have been grouped into four classes (designated by a superscript after the problem number). 

Class a Illustrates direct numerical application of the formulas in the text. 

Class b Requires elementary analysis of physical situations, based on the subject material in the chapter. 

Class c Requires somewhat more mature analysis. 

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