Exploring Psychrometric Principles The mixture enthalpy per unit mass of dry air,...

Exploring Psychrometric Principles

The mixture enthalpy per unit mass of dry air, in kJ/kg(a), represented on Fig. A-9 can be approximated closely from the expression

When using Fig. A-9E, the corresponding expression, in Btu/ lb(a), is

Noting all significant assumptions, develop the above expressions.