kg/s and the low-temperature evaporator serves a cooling load of 10 kW. The refrigerant is saturated liquid at the exit of the condenser and saturated vapor at the exit of each evaporator, and the compressor is isentropic efficiency is 95%.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Two evaporator compression refrigeration system as shown in the pricutre below uses refrigerant134a as a working fluid. Evaporator 1 operates at 0 ºC, evaporator 2 operates at -26.4ºC, and the
condenser operates at 800 kPa. The refrigerant is circulated through the compressor at a rate of 0.5
kg/s and the low-temperature evaporator serves a cooling load of 10 kW. The refrigerant is saturated liquid at the exit of the condenser and saturated vapor at the exit of each evaporator, and the compressor is isentropic efficiency is 95%.

 Determine a) the cooling rate of the high-temperature evaporator,b) the power required by the compressor, c) the COP of the cycle.

Condenser
Evaporator I
Pressure
reducing
valve
Evaporator 2
Transcribed Image Text:Condenser Evaporator I Pressure reducing valve Evaporator 2
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