A heat pump that operates on the ideal vapor compression cycle with refrigerant-134a is used to heat a house. The mass flow rate of the refrigerant is 0.25 kg/s. The condenser and evaporator pressures are 1400 and 320 kPa, respectively. (1) Using didactic sketches, evaluate the operating principles of a heat pump. (2) Determine the rate of heat supply to the house (3) The volume flow rate of the refrigerant at the compressor inlet (4) Calculate the COP of this heat pump (5) Calculate the reversible COP in this cycle (6) In order to increase the COP of the heat pump, what recommendations or improvements would you suggest? explain your recommendations. (7) Determine how the COP will be affected if the isentropic compressor efficiency is changed to 75%.

A heat pump that operates on the ideal vapor compression cycle with refrigerant-134a is used to heat a house. The mass flow rate of the refrigerant is 0.25 kg/s. The condenser and evaporator pressures are 1400 and 320 kPa, respectively. (1) Using didactic sketches, evaluate the operating principles of a heat pump. (2) Determine the rate of heat supply to the house (3) The volume flow rate of the refrigerant at the compressor inlet (4) Calculate the COP of this heat pump (5) Calculate the reversible COP in this cycle (6) In order to increase the COP of the heat pump, what recommendations or improvements would you suggest? explain your recommendations. (7) Determine how the COP will be affected if the isentropic compressor efficiency is changed to 75%.

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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