Problem 4 Psychrometrics (40 points)

A flow of air (350 cfm) enters an automotive A/C unit at 14.7 psia, 104°F and 50% relative

humidity is cooled to 55°F. Copyright © 2023 Scott D Sawyer. All rights reserved. This material

may not be reproduced, distributed, transmitted, displayed, published, or broadcast, in whole or

in part, without the prior written permission of Scott D Sawyer. Any unauthorized use of this

material is a violation of copyright law and will be pursued to the limit of civil and criminal

penalties.

(a) Draw a schematic of the system

Determine:

(b) the mass flow rate of dry air for at the inlet

(c) the rate of heat removed in (Btu/hr)

(d) the rate of liquid water condensation (if any, in lbm/hr)

*If you use a psychrometric calculator, please include screenshots that show your work