Q.7 The condensing and evaporating temperatures of a vapor compression cycle using R134a are 40°C and -5°C respectively. The vapor leaving the evaporator is heated to 5°C in a heat exchanger using the saturated liquid leaving the condenser. The refrigerant flow rate is 0.3 kgs. The compression process is isentropic. Calculate (i) the heat absorption rate in the evaporator, (ii) the work input to the compressor, and (iii) the COP.

Q.7 The condensing and evaporating temperatures of a vapor compression cycle using R134a are 40°C and -5°C respectively. The vapor leaving the evaporator is heated to 5°C in a heat exchanger using the saturated liquid leaving the condenser. The refrigerant flow rate is 0.3 kgs. The compression process is isentropic. Calculate (i) the heat absorption rate in the evaporator, (ii) the work input to the compressor, and (iii) the COP.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter10: Heat Exchangers

Section: Chapter Questions

Problem 10.17P

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