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Calculate the actual COP of the refrigerating device if it is operating between the temperature range of 250 K and 300 K. (Take relative COP = 0.5) 1. 4 2. 5 3. 2.5 4. 7

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

Chapter3: Refrigeration And Refrigerants

Section: Chapter Questions

Problem 2RQ: What are the approximate temperature ranges tor low-, medium-, and high-temperature refrigeration...

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Question

Calculate the actual COP of the refrigerating device if it is operating between the
temperature range of 250 K and 300 K. (Take relative COP = 0.5)
1. 4
2. 5
3. 2.5
4. 7

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A refrigerant 22 refrigerating system is operating with a condenser temperature of 42°C and an evaporating temperature of 0°C. (a) If the liquid line from the condenser is soldered to the suction line from the evaporator to form a simple heat exchanger and if as a result of this the saturated vapor leaving the evaporator is superheated 10 degrees, how many degrees will the saturated liquid leaving the condenser be subcooled? Determine (b) the volume flow rate, and (c) the compressor work.
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