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e vapor-compression refrigeration cycle uses R-134a as poler operates in 80°F surroundings, and the water coc M stream of liquid water from 60°F to 35°F. The comp ondenser pressures that will allow the refrigeration cy

e vapor-compression refrigeration cycle uses R-134a as poler operates in 80°F surroundings, and the water coc M stream of liquid water from 60°F to 35°F. The comp ondenser pressures that will allow the refrigeration cy

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A water cooler based on the vapor-compression refrigeration cycle uses R-134a as the working fluid. The water cooler operates in 80°F surroundings, and the water cooler will used to cool a 0.50 GPM stream of liquid water from 60°F to 35°F. The compressor efficiency is 75%. a) Select evaporator and condenser pressures that will allow the refrigeration cycle to operate in this environment, and find the coefficient of performance of the refrigeration cycle. b) Find the power input to the compressor, in horsepower. Use Cengel's R-134a tables posted on Canvas to model the refrigerant. Expansion Valve TOUT = 35°F 3 4 80°F Surroundings QCONDENSER 2 Condenser Evaporator EVAPORATOR 0.50 GPM of Water Compressor TIN = 60°F W COMPRESSOR
Transcribed Image Text:A water cooler based on the vapor-compression refrigeration cycle uses R-134a as the working fluid. The water cooler operates in 80°F surroundings, and the water cooler will used to cool a 0.50 GPM stream of liquid water from 60°F to 35°F. The compressor efficiency is 75%. a) Select evaporator and condenser pressures that will allow the refrigeration cycle to operate in this environment, and find the coefficient of performance of the refrigeration cycle. b) Find the power input to the compressor, in horsepower. Use Cengel's R-134a tables posted on Canvas to model the refrigerant. Expansion Valve TOUT = 35°F 3 4 80°F Surroundings QCONDENSER 2 Condenser Evaporator EVAPORATOR 0.50 GPM of Water Compressor TIN = 60°F W COMPRESSOR
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