In a refrigerator, R-134a enters the evaporator (the cold heat exchanger) at –17°c , x= 25% and leaves at –170c, x = 1. The COP of the refrigerator is 2.3 and the mass flow rate is 0.006 kg/s. Find the net work input W to the cycle and the total heat rejection rate Q# to the surroundings? (You may need to do interpolation between the temperatures –16°C and – 18°C) |

In a refrigerator, R-134a enters the evaporator (the cold heat exchanger) at –17°c , x= 25% and leaves at –170c, x = 1. The COP of the refrigerator is 2.3 and the mass flow rate is 0.006 kg/s. Find the net work input W to the cycle and the total heat rejection rate Q# to the surroundings? (You may need to do interpolation between the temperatures –16°C and – 18°C) |

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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