Carbon dioxide gas is compressed at steady state from a pressure of 22 lby/in? and a temperature of 32°F to a pressure of 50 lb/in and a temperature of 110°F. The gas enters the compressor with a velocity of 30 ft/s and exits with a velocity of 80 ft/s. The mass fl rate is 3500 lb/hr. The magnitude of the heat transfer rate from the compressor to its surroundings is 5% of the compressor power input. Use the ideal gas model with ca = 0.21 Btu/lb-°R and neglect potential energy effects.
Carbon dioxide gas is compressed at steady state from a pressure of 22 lby/in? and a temperature of 32°F to a pressure of 50 lb/in and a temperature of 110°F. The gas enters the compressor with a velocity of 30 ft/s and exits with a velocity of 80 ft/s. The mass fl rate is 3500 lb/hr. The magnitude of the heat transfer rate from the compressor to its surroundings is 5% of the compressor power input. Use the ideal gas model with ca = 0.21 Btu/lb-°R and neglect potential energy effects.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:Carbon dioxide gas is compressed at steady state from a pressure of 22 Ib;/in? and a temperature of 32°F to a pressure of 50 lb;/in?
and a temperature of 110°F. The gas enters the compressor with a velocity of 30 ft/s and exits with a velocity of 80 ft/s. The mass flow
rate is 3500 lb/hr. The magnitude of the heat transfer rate from the compressor to its surroundings is 5% of the compressor power
input. Use the ideal gas model with cp = 0.21 Btu/lb-°R and neglect potential energy effects.
Determine the flow area at the inlet, in ft?, and the power required by the compressor to work, in horsepower.
Step 1
Determine the flow area at the inlet, in ft?.
A1=
ft?
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