A non-reacting gaseous mixture with molar analysis of 74.3% N2, 4.3% O2, 7.1% CO2, and 14.3% H2O(g) enters a counter-flow heat exchanger at 800?F and 1 atm with a volumetric flow rate of 5 ft3/s (State 1) and exits at 200?F (State 2). A separate moist air stream enters the heat exchanger at 60?F, 1 atm, and relative humidity 30% (State 3) and exits at 100?F (State 4).
a) Show the process for moist air on psychometric chart. Label states 3 and 4.
b) Calculate the mass flow rate (lbm/s) of moist air.
c) Determine the volumetric flow rate (ft3/s) of moist air at the inlet and at the exit.