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Consider a Carnot refrigeration cycle executed in a closed
Chapter 6, Problem 126P(choose chapter or problem)
Problem 126P
Consider a Carnot refrigeration cycle executed in a closed system in the saturated liquid–vapor mixture region using 0.96,kg of refrigerant-134a as the working fluid. It is known that the maximum absolute temperature in the cycle is 1.2 times the minimum absolute temperature, and the net work input to the cycle is 22 kJ. If the refrigerant changes from saturated vapor to saturated liquid during the heat rejection process, determine the minimum pressure in the cycle.
Questions & Answers
QUESTION:
Problem 126P
Consider a Carnot refrigeration cycle executed in a closed system in the saturated liquid–vapor mixture region using 0.96,kg of refrigerant-134a as the working fluid. It is known that the maximum absolute temperature in the cycle is 1.2 times the minimum absolute temperature, and the net work input to the cycle is 22 kJ. If the refrigerant changes from saturated vapor to saturated liquid during the heat rejection process, determine the minimum pressure in the cycle.
ANSWER:
Step 1 of 3
The equation for the heat load is as follows:
For , and .