1. An ideal-gas refrigeration cycle uses air as the working fluid to maintain a refrigerated space at - 30°C while rejecting heat to the surrounding medium at 30°C. If the pressure ratio of the compressor is 3 and the polytropic index is 1.3 for both compressor and expander, determine the minimum temperature in the cycle for a mass flow rate of 0.03 kg/s. °C

1. An ideal-gas refrigeration cycle uses air as the working fluid to maintain a refrigerated space at - 30°C while rejecting heat to the surrounding medium at 30°C. If the pressure ratio of the compressor is 3 and the polytropic index is 1.3 for both compressor and expander, determine the minimum temperature in the cycle for a mass flow rate of 0.03 kg/s. °C

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 2RQ: The operating condition for the single compressor in a household refrigerator is the lowest box...

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