Refrigerant 134a is the working fluid in a vapor-compression heat pump system with a heating capacity of 65,000 Btu/h. The condenser operates at 300 lbf/in , and the evaporator temperature is -10°F. The refrigerant is a saturated vapor at the evaporator exit and a liquid at 120°F at the condenser exit. Pressure drops in the flows through the evaporator and condenser are negligible. The compression process is adiabatic, and the temperature at the compressor exit is 200°F A) Determine the mass flow rate of refrigerant in lb/min B) Determine the required horsepower of the compressor. C) Determine the coefficient of performance
Refrigerant 134a is the working fluid in a vapor-compression heat pump system with a heating capacity of 65,000 Btu/h. The condenser operates at 300 lbf/in , and the evaporator temperature is -10°F. The refrigerant is a saturated vapor at the evaporator exit and a liquid at 120°F at the condenser exit. Pressure drops in the flows through the evaporator and condenser are negligible. The compression process is adiabatic, and the temperature at the compressor exit is 200°F A) Determine the mass flow rate of refrigerant in lb/min B) Determine the required horsepower of the compressor. C) Determine the coefficient of performance
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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Refrigerant 134a is the working fluid in a vapor-compression heat pump system with a heating
capacity of 65,000 Btu/h. The condenser operates at 300 lbf/in , and the evaporator temperature
is -10°F. The refrigerant is a saturated vapor at the evaporator exit and a liquid at 120°F at the
condenser exit. Pressure drops in the flows through the evaporator and condenser are negligible.
The compression process is adiabatic, and the temperature at the compressor exit is 200°F
A) Determine the mass flow rate of refrigerant in lb/min
B) Determine the required horsepower of the compressor.
C) Determine the coefficient of performance.
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