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Type: E 4. A reversed Brayton refrigeration cycle uses air as its working fluid in a closed loop. The air enters the compressor at 100 kPa and -10°C, and enters the turbine at 1000 kPa and 30°C. The mass flow rate of the air through the cycle is 1.5 kg/s. Determine the rate at which heat is removed from the cold space and the coefficient of performance of the cycle if (a) the turbine and compressor are isentropic and (b) the turbine and compressor both have isentropic efficiencies of 0.80. Assume that the specific heats of the air are constant.

Type: E 4. A reversed Brayton refrigeration cycle uses air as its working fluid in a closed loop. The air enters the compressor at 100 kPa and -10°C, and enters the turbine at 1000 kPa and 30°C. The mass flow rate of the air through the cycle is 1.5 kg/s. Determine the rate at which heat is removed from the cold space and the coefficient of performance of the cycle if (a) the turbine and compressor are isentropic and (b) the turbine and compressor both have isentropic efficiencies of 0.80. Assume that the specific heats of the air are constant.

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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Type: E 4. A reversed Brayton refrigeration cycle uses air as its working fluid in a closed loop. The air enters the compressor at 100 kPa and -10°C, and enters the turbine at 1000 kPa and 30°C. The mass flow rate of the air through the cycle is 1.5 kg/s. Determine the rate at which heat is removed from the cold space and the coefficient of performance of the cycle if (a) the turbine and compressor are isentropic and (b) the turbine and compressor both have isentropic efficiencies of 0.80. Assume that the specific heats of the air are constant.
Transcribed Image Text:Type: E 4. A reversed Brayton refrigeration cycle uses air as its working fluid in a closed loop. The air enters the compressor at 100 kPa and -10°C, and enters the turbine at 1000 kPa and 30°C. The mass flow rate of the air through the cycle is 1.5 kg/s. Determine the rate at which heat is removed from the cold space and the coefficient of performance of the cycle if (a) the turbine and compressor are isentropic and (b) the turbine and compressor both have isentropic efficiencies of 0.80. Assume that the specific heats of the air are constant.
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