An ideal gas refrigeration cycle with a pressure ratio of four uses air as the working fluid. Air enters the compressor at 100 kPa and 0°C and the turbine at 50 °C. Determine (a) the temperature at the turbine exit, (b) the heat removed per unit mass of the air, and (c) the COP of the cycle.

An ideal gas refrigeration cycle with a pressure ratio of four uses air as the working fluid. Air enters the compressor at 100 kPa and 0°C and the turbine at 50 °C. Determine (a) the temperature at the turbine exit, (b) the heat removed per unit mass of the air, and (c) the COP of the cycle.

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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