Exploring Psychrometric Principles Moist air at 15°C, 1.3 atm, 63% relative humid...

Exploring Psychrometric Principles

Moist air at 15°C, 1.3 atm, 63% relative humidity and a volumetric flow rate of 770 m³/h enters a control volume at steady state and flows along a surface maintained at 187°C, through which heat transfer occurs. Liquid water at 15°C is injected at a rate of 7 kg/h and evaporates into the flowing stream. For the control volume, and kinetic and potential energy effects are negligible. If moist air exits at 45°C, 1.3 atm, determine

(a) the rate of heat transfer, in kW.

(b) the rate of entropy production, in kW/K.