A refrigeration system uses water-cooled condenser for rejecting the waste heat. The system absorbs heat from a space at 25°F at a rate of 24,000 Btu/h. Water enters the condenser at 65°F at a rate of 1.45 lbm/s. The COP of the system is estimated to be 1.9. Determine (a) the power input to the system, in kW, (b) the temperature of the water at the exit of the condenser, in °F and (c) the maximum possible COP of the system. The specific heat of water is 1.0 Btu/bm∙°F.
A refrigeration system uses water-cooled condenser for rejecting the waste heat. The system absorbs heat from a space at 25°F at a rate of 24,000 Btu/h. Water enters the condenser at 65°F at a rate of 1.45 lbm/s. The COP of the system is estimated to be 1.9. Determine (a) the power input to the system, in kW, (b) the temperature of the water at the exit of the condenser, in °F and (c) the maximum possible COP of the system. The specific heat of water is 1.0 Btu/bm∙°F.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A refrigeration system uses water-cooled condenser
for rejecting the waste heat. The system absorbs heat from a
space at 25°F at a rate of 24,000 Btu/h. Water enters the condenser
at 65°F at a rate of 1.45 lbm/s. The COP of the system
is estimated to be 1.9. Determine (a) the power input to the
system, in kW, (b) the temperature of the water at the exit of
the condenser, in °F and (c) the maximum possible COP of
the system. The specific heat of water is 1.0 Btu/bm∙°F.
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