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A compressor is used to increase air pressure with the assumption that there is no heat transfer from/to the compressor. The air is entering at 150 kPa and 37 C and leaving at 650 kPa and 227 C with 250 kg/min as mass rate. The constant-pressure specific heat of air is 1.011 k/kg, and the gas constant is 0.287 k/kg.K while the surrounding is 27C and 100 kPa. a. Deterrmined the entropy charnges of air after the process. b. Determine the reversible power of the compressor in kW.

A compressor is used to increase air pressure with the assumption that there is no heat transfer from/to the compressor. The air is entering at 150 kPa and 37 C and leaving at 650 kPa and 227 C with 250 kg/min as mass rate. The constant-pressure specific heat of air is 1.011 k/kg, and the gas constant is 0.287 k/kg.K while the surrounding is 27C and 100 kPa. a. Deterrmined the entropy charnges of air after the process. b. Determine the reversible power of the compressor in kW.

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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A compressor is used to increase air pressure with the assumption that there is no heat transfer from/to the compressor. The air is entering at 150 kPa and 37 C and leaving at 650 kPa and 227 C with 250 kg/min as mass rate. The constant-pressure specific heat of air is 1.011 k/kg, and the gas constant is 0.287 k/kg.K while the surrounding is 27"C and 100 kPa. a. Deterrmined the entropy charnges of air after the process. b. Determine the reversible power of the compressor in kW.
Transcribed Image Text:A compressor is used to increase air pressure with the assumption that there is no heat transfer from/to the compressor. The air is entering at 150 kPa and 37 C and leaving at 650 kPa and 227 C with 250 kg/min as mass rate. The constant-pressure specific heat of air is 1.011 k/kg, and the gas constant is 0.287 k/kg.K while the surrounding is 27"C and 100 kPa. a. Deterrmined the entropy charnges of air after the process. b. Determine the reversible power of the compressor in kW.
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