fordkt1700 fordkt1700

30-04-2024
Physics

Answered

A vapor compression refrigeration cycle uses refrigerant-134a as its working fluid. The condenser pressure is 800 kPa and the evaporator temperature is -20 C. The compressor has an isentropic efficiency of 80 percent. The mass flow rate is 1.0493 kg/s.
In the question that follows, select the answer that is closest to the true value.
What is the heat going to the evaporator in units of kW?

a. 150
b. 250
c. 200
d. 300

Answer :

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