Consider a cooling device operating in the ideal vapor compression refrigeration cycle using R-134a as the working fluid. The refrigerant enters the compressor as saturated vapor at 180 kPa and exits at 800 kPa and 50°C. It leaves the condenser as a saturated liquid at 800 kPa. What is the efficiency coefficient of the cooling device?

Consider a cooling device operating in the ideal vapor compression refrigeration cycle using R-134a as the working fluid. The refrigerant enters the compressor as saturated vapor at 180 kPa and exits at 800 kPa and 50°C. It leaves the condenser as a saturated liquid at 800 kPa. What is the efficiency coefficient of the cooling device?

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

Chapter28: Special Refrigeration Applications

Section: Chapter Questions

Problem 15RQ: Why is two-stage compression popular for extra-low-temperature refrigeration systems?

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