A Carnot vapor refrigeration cycle operates between thermal reservoirs at 7°C and 28°C. The working fluid is saturated vapor at the end of the compression process and saturated liquid at the beginning of the expansion process. Determine the operating pressures in the condenser and evaporator, in bar, and the coefficient of performance for each of the following as the working fluid.

Solid Waste Engineering
3rd Edition
ISBN:9781305635203
Author:Worrell, William A.
Publisher:Worrell, William A.
Chapter7: Thermal Processes
Section: Chapter Questions
Problem 7.1P
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A Carnot vapor refrigeration cycle operates
between thermal reservoirs at 7°C and 28°C. The
working fluid is saturated vapor at the end of the
compression process and saturated liquid at the
beginning of the expansion process.
Determine the operating pressures in the
condenser and evaporator, in bar, and the
coefficient of performance for each of the
following as the working fluid.
(a) Refrigerant 134a
(b) Refrigerant R22
(c) water
(d) ammonia
Transcribed Image Text:A Carnot vapor refrigeration cycle operates between thermal reservoirs at 7°C and 28°C. The working fluid is saturated vapor at the end of the compression process and saturated liquid at the beginning of the expansion process. Determine the operating pressures in the condenser and evaporator, in bar, and the coefficient of performance for each of the following as the working fluid. (a) Refrigerant 134a (b) Refrigerant R22 (c) water (d) ammonia
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