15 m3/min of air at 104oF and 60% relative humidity is cooled to 59oF and 100% relative humidity, and then reheated to 68oF. Find the following: a. The flow rate of dry air (BDA) in kg /min. b. The amount of water condensed during cooling stage. c. kW of power needed for cooling the air in the cooling stage. d. kW of power needed for the heating step.

Agas contained within a piston-cylinder assembly e end nation about same energy states, 1 and 2, where pi 10 bar, v undergoes two processes, a and b, between the sam 0.1 m3, ui-400 kj and p2 1 bar, v2 1.0 m2, u2 200 kj: process a: process from 1 to 2 during which the pressure- volume relation is pv constant process b: constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to +20 0 state 2 kinetic and potential energy effects can be ignored. for each of the processes a and b, (a) sketch the process on p-v coordinates, (b) evaluate the work, in kj, and (c) evaluate process the heat transfer, in kj