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Carbon dioxide gas is compressed at steady state from a pressure of 18 lbf/in2 and a temperature of 32°F to a pressure of 50 lbf/in2 and a temperature of 130°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 2500 Ib/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 ft2, and the power required by the compressor to work, in horsepower.

Carbon dioxide gas is compressed at steady state from a pressure of 18 lbf/in2 and a temperature of 32°F to a pressure of 50 lbf/in2 and a temperature of 130°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 2500 Ib/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 ft2, and the power required by the compressor to work, in horsepower.

Elements Of Electromagnetics
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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Carbon dioxide gas is compressed at steady state from a pressure of 18 lbf/in2 and a temperature of 32°F to a pressure of 50 lbf/in2 and a temperature of 130°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 2500 Ib/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 c, = 0.21 Btu/lb-°R and neglect potential energy effects. Determine the flow area at the inlet, in ft2, and the power required by the compressor to work, in horsepower.
Transcribed Image Text:Carbon dioxide gas is compressed at steady state from a pressure of 18 lbf/in2 and a temperature of 32°F to a pressure of 50 lbf/in2 and a temperature of 130°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 2500 Ib/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 c, = 0.21 Btu/lb-°R and neglect potential energy effects. Determine the flow area at the inlet, in ft2, and the power required by the compressor to work, in horsepower.
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