Refrigerant-134a enters the condenser of a residentialheat pump at 800 kPa and 50C at a rate of 0.022 kg/s and leavesat 750 kPa subcooled by 3C. The refrigerant enters the compressorat 200 kPa superheated by 4C. Determine (a) the isentropicefficiency of the compressor, (b) the rate of heat supplied to theheated room, and (c) the COP of the heat pump. Also, determine(d ) the COP and the rate of heat supplied to the heated roomif this heat pump operated on the ideal vapor- compression cyclebetween the pressure limits of 200 and 800 kPa.
Refrigerant-134a enters the condenser of a residentialheat pump at 800 kPa and 50C at a rate of 0.022 kg/s and leavesat 750 kPa subcooled by 3C. The refrigerant enters the compressorat 200 kPa superheated by 4C. Determine (a) the isentropicefficiency of the compressor, (b) the rate of heat supplied to theheated room, and (c) the COP of the heat pump. Also, determine(d ) the COP and the rate of heat supplied to the heated roomif this heat pump operated on the ideal vapor- compression cyclebetween the pressure limits of 200 and 800 kPa.
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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Refrigerant-134a enters the condenser of a residential
heat pump at 800 kPa and 50C at a rate of 0.022 kg/s and leaves
at 750 kPa subcooled by 3C. The refrigerant enters the compressor
at 200 kPa superheated by 4C. Determine (a) the isentropic
efficiency of the compressor, (b) the rate of heat supplied to the
heated room, and (c) the COP of the heat pump. Also, determine
(d ) the COP and the rate of heat supplied to the heated room
if this heat pump operated on the ideal vapor- compression cycle
between the pressure limits of 200 and 800 kPa.
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