A heat pump with refrigerant-22 (R-22) as the working fluid is used to keep a space at 23 °C by absorbing heat from geothermal water that enters the evaporator at 85 °C at a rate of 0.08 kg/s and leaves at 32 °C. Refrigerant enters the evaporator at 10 °C with a quality of 20 percent and leaves at the same pressure as saturated vapor. If the compressor consumes 6.26 kW of power, accordingly determine a) The mass flow rate of the refrigerant, b) The rate of heat supply, c) The COP, and d) The minimum power input to the compressor for the same rate of heat supply. Note: You may use Thermodynamics Tables by Michael J. Moran for this question. Expansion valve 10°C x = 0.20 Condenser Compressor Evaporator Geo. water 85 °C 32°C Sat. vapor

A heat pump with refrigerant-22 (R-22) as the working fluid is used to keep a space at 23 °C by absorbing heat from geothermal water that enters the evaporator at 85 °C at a rate of 0.08 kg/s and leaves at 32 °C. Refrigerant enters the evaporator at 10 °C with a quality of 20 percent and leaves at the same pressure as saturated vapor. If the compressor consumes 6.26 kW of power, accordingly determine a) The mass flow rate of the refrigerant, b) The rate of heat supply, c) The COP, and d) The minimum power input to the compressor for the same rate of heat supply. Note: You may use Thermodynamics Tables by Michael J. Moran for this question. Expansion valve 10°C x = 0.20 Condenser Compressor Evaporator Geo. water 85 °C 32°C Sat. vapor

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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