An ideal vapor-compression refrigeration cycle that uses refrigerant-134a as its working fluid maintains a condenser at 800 kPa and the evaporator at -12°C. Determine this system's COP and the amount of power required to service a 150 kW cooling load. Answers: 4.87, 30.8 kW

An ideal vapor-compression refrigeration cycle that uses refrigerant-134a as its working fluid maintains a condenser at 800 kPa and the evaporator at -12°C. Determine this system's COP and the amount of power required to service a 150 kW cooling load. Answers: 4.87, 30.8 kW

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

Chapter22: Condensers

Section: Chapter Questions

Problem 7RQ: When a standard-efficiency air-cooled condenser is used, the condensing refrigerant will normally be...

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1. An ideal vapor-compression refrigeration cycle that uses refrigerant-134a as its working fluid
maintains a condenser at 800 kPa and the evaporator at -12°C. Determine this system's COP
and the amount of power required to service a 150 kW cooling load. Answers: 4.87, 30.8 kW

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please answers fasterrr An ice-making machine in Restoran Syed operates on the vapor-compression refrigeration cycle. Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.13MPa and a °C at a rate of 0.13kg/s, and it leaves at 0.7 MPa and b °C. The refrigerantis cooled in the condenser to c°C and dMPa, and it is throttled to 0.14MPa. Disregarding any heat transfer and pressure drops in the connecting lines between the components, show the cycle on a T-s diagram with respect to saturation lines, and determine;i.the rate of heat removal from the refrigerated space,ii.the power input to the compressor, iii.the isentropic efficiency of the compressor, and iv.the COP of the refrigerator.v.if the compressor has no irreversibility, how about the COP?vi.Justify the difference between ideal and actual cycles. a= -8 b= 49 c= 25 d= 670
question 51 An ideal vapor-compression refrigeration cycle that uses refrigerant-134a as its working fluid maintains a condenser at 800 kPa and the evaporator at -12 C. Determine this system’s COP and the amount of power required to service a 150 kW cooling load. What is the mass flow rate of refrigerant in kg/s to 4 decimal places? No need to add units to the answer.