A domestic refrigerator using R-12 as a working fluid .The condensing and evaporating temperatures are 100 F and 25 F respectively. Heat exchanger is added to sub-cooled the saturated liquid to 70 F. Compute; i) ŋre & n, if m=3% & y=1.25, T,=60 F & Ap=2.1 psia. (ii) work done compressor, (iii) C,O.P.

A domestic refrigerator using R-12 as a working fluid .The condensing and evaporating temperatures are 100 F and 25 F respectively. Heat exchanger is added to sub-cooled the saturated liquid to 70 F. Compute; i) ŋre & n, if m=3% & y=1.25, T,=60 F & Ap=2.1 psia. (ii) work done compressor, (iii) C,O.P.

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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