2.1 An air refrigeration cycle has pressure ratio of 8, temperature of air at beginning of compression is – 30°C and air is cooled up to 27°C after compression. Compression and expansion processes have isentropic efficiency of 85% and 90% respectively. Determine 2.1.1 the refrigeration capacity and 2.1.2 coefficient of performance. Consider Cp = 1.005 kJ/kg ·K, y = 1.4 and air flow
2.1 An air refrigeration cycle has pressure ratio of 8, temperature of air at beginning of compression is – 30°C and air is cooled up to 27°C after compression. Compression and expansion processes have isentropic efficiency of 85% and 90% respectively. Determine 2.1.1 the refrigeration capacity and 2.1.2 coefficient of performance. Consider Cp = 1.005 kJ/kg ·K, y = 1.4 and air flow
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter45: Domestic Refrigerators And Freezers
Section: Chapter Questions
Problem 12RQ: Refrigerators currently being manufactured in the United States are using______as their refrigerant.
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