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A Carnot vapor refrigeration cycle is used to maintain a cold region at 0°F where the ambient temperature is 75 °F. Refrigerant R-134a enters the condenser as saturated vapor at 100 psi and leaves as saturated liquid at the same pressure. The evaporator pressure is 20 psi. The mass flow rate of refrigerant is 12 lbm/s. Calculate (a) the compressor work Btu/min (b) turbine power, in Btu/min and (b) the coefficient of performance.

A Carnot vapor refrigeration cycle is used to maintain a cold region at 0°F where the ambient temperature is 75 °F. Refrigerant R-134a enters the condenser as saturated vapor at 100 psi and leaves as saturated liquid at the same pressure. The evaporator pressure is 20 psi. The mass flow rate of refrigerant is 12 lbm/s. Calculate (a) the compressor work Btu/min (b) turbine power, in Btu/min and (b) the coefficient of performance.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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B. Solve the following Carnot Refrigeration Cycle Problems: 1. A Carnot vapor refrigeration cycle is used to maintain a cold region at 0°F where the ambient temperature is 75 °F. Refrigerant R-134a enters the condenser as saturated vapor at 100 psi and leaves as saturated liquid at the same pressure. The evaporator pressure is 20 psi. The mass flow rate of refrigerant is 12 lbm/s. Calculate (a) the compressor work Btu/min (b) turbine power, in Btu/min and (b) the coefficient of performance.
Transcribed Image Text:B. Solve the following Carnot Refrigeration Cycle Problems: 1. A Carnot vapor refrigeration cycle is used to maintain a cold region at 0°F where the ambient temperature is 75 °F. Refrigerant R-134a enters the condenser as saturated vapor at 100 psi and leaves as saturated liquid at the same pressure. The evaporator pressure is 20 psi. The mass flow rate of refrigerant is 12 lbm/s. Calculate (a) the compressor work Btu/min (b) turbine power, in Btu/min and (b) the coefficient of performance.
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