A refrigerator absorbs 137 kJ/kg of heat from a cool compartment at -10°C and rejects heat to the kitchen air at 30 °C. The amount of work supplied to the refrigerator is 54 kJ/kg. i) Sketch the schematic diagram of the refrigerator system. ii) Calculate the COP of the refrigerator. iii) Determine whether this refrigerator is reversible, irreversible or impossible.
A refrigerator absorbs 137 kJ/kg of heat from a cool compartment at -10°C and rejects heat to the kitchen air at 30 °C. The amount of work supplied to the refrigerator is 54 kJ/kg. i) Sketch the schematic diagram of the refrigerator system. ii) Calculate the COP of the refrigerator. iii) Determine whether this refrigerator is reversible, irreversible or impossible.
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.
Chapter8: Natural Convection
Section: Chapter Questions
Problem 8.46P
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