Carbon dioxide gas is compressed at steady state from a pressure of 18 lb-/in² and a temperature of 32°F to a pressure of 50 lb-/in² 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 4000 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.ºR 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. Step 1 Determine the flow area at the inlet, in ft². A₁ = i ft²

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Carbon dioxide gas is compressed at steady state from a pressure of 18 lb-/in² and a temperature of 32°F to a pressure of 50 lb-/in²
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 4000 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.ºR 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.
Step 1
Determine the flow area at the inlet, in ft².
A₁ =
i
ft²
Transcribed Image Text:Carbon dioxide gas is compressed at steady state from a pressure of 18 lb-/in² and a temperature of 32°F to a pressure of 50 lb-/in² 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 4000 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.ºR 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. Step 1 Determine the flow area at the inlet, in ft². A₁ = i ft²
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