Repeat Prob. 11-123 if the heat exchanger provides 9.51oC of subcooling. Prob. 11-123 The refrigeration system of
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Prob. 11-123
The refrigeration system of Fig. P11-123 is another variation of the basic vapor-compression refrigeration system which attempts to reduce the compression work. In this system, a heat exchanger is used to superheat the vapor entering the compressor while subcooling the liquid exiting from the condenser. Consider a system of this type that uses refrigerant-134a as its refrigerant and operates the evaporator at - 10.09oC, and the condenser at 900 kPa. Determine the system COP when the heat exchanger provides 5.51oC of subcooling at the throttle valve entrance. Assume the refrigerant leaves the evaporator as a saturated vapor and the compressor is isentropic.
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Thermodynamics An Engineering Approach
ISBN: 978-0073398174
8th edition
Authors: Yunus A. Cengel, Michael A. Boles
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