A compressor draws in 500 min of air whose density is 0.079 and discharges it with a density of 0.304 - At the suction, P1 = 15 and at the discharge, in? Btu and the lb P2 = 80 The increase in the specific internal energy is 33.8 Btu heat from the air by cooling is 13 Neglecting changes in the potential and lb kinetic energy ermine the work done on the air in min Btu and in horsepower.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A compressor draws in 500
of air whose density is 0.079
lb
and discharges
min
lb
it with a density of 0.304
ft³
At the suction, P1 = 15
in?
and at the discharge,
lb
The increase in the specific internal energy is 33.8
Btu
and the
lb
P2 = 80
in?
Btu
heat from the air by cooling is 13 . Neglecting changes in the potential and
lb
Btu
kinetic energy determine the work done on the air in
min
and in horsepower.
Transcribed Image Text:A compressor draws in 500 of air whose density is 0.079 lb and discharges min lb it with a density of 0.304 ft³ At the suction, P1 = 15 in? and at the discharge, lb The increase in the specific internal energy is 33.8 Btu and the lb P2 = 80 in? Btu heat from the air by cooling is 13 . Neglecting changes in the potential and lb Btu kinetic energy determine the work done on the air in min and in horsepower.
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