A compressor draws in 500 cfm of air whose density is 0.079 lb/ft and discharges it with a density of 0.304 lb/ft. At the suction, p.-15 psia; at discharge, p-80 psia. The increase in the specific internal energy is 33.8 Btu/lb, and the heat from the air by cooling is 13 Btu/ Ib. Neglecting changes of potential and kinetic energy, determine the work done on the air in Btu/min and in hp.

A compressor draws in 500 cfm of air whose density is 0.079 lb/ft and discharges it with a density of 0.304 lb/ft. At the suction, p.-15 psia; at discharge, p-80 psia. The increase in the specific internal energy is 33.8 Btu/lb, and the heat from the air by cooling is 13 Btu/ Ib. Neglecting changes of potential and kinetic energy, determine the work done on the air in Btu/min and in hp.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter10: Heat Exchangers

Section: Chapter Questions

Problem 10.19P

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