R-134a as a refrigerant, in a cooling machine used; refrigerant to evaporator (evaporator) 0.15 dryness It enters with a temperature of -12 oC and a flow rate of 0.028 kg/s and leaves the evaporator as saturated steam. cooling machine Since it works according to the reverse Carnot cycle and the compressor consumes 1.45 kW of power a) Find the efficiency coefficient of the cooling machine. b) Calculate the heat given to the outside environment c) Calculate the condenser temperature

R-134a as a refrigerant, in a cooling machine used; refrigerant to evaporator (evaporator) 0.15 dryness It enters with a temperature of -12 oC and a flow rate of 0.028 kg/s and leaves the evaporator as saturated steam. cooling machine Since it works according to the reverse Carnot cycle and the compressor consumes 1.45 kW of power a) Find the efficiency coefficient of the cooling machine. b) Calculate the heat given to the outside environment c) Calculate the condenser temperature

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

Chapter35: Comfort And Psychrometrics

Section: Chapter Questions

Problem 12RQ: A gas furnace has an output of 60,000 Btu/h. The return air temperature is 72F, and the temperature...

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A gas furnace has an output of 60,000 Btu/h. The return air temperature is 72F, and the temperature out of the furnace is 130F. Disregarding the heat the fan motor may add to the airstream, how much air is the furnace handling?
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