A Carnot refrigerator reguires 1.3 kW per tonne of refrigeration to maintain a region at low temperature of - 38°C. Determine: (1) C.O.P. of Carnot refrigerator (2) Higher temperature of the cyole (3) The heat delivered and C.O.P. when this device is used as heat pump.

A Carnot refrigerator reguires 1.3 kW per tonne of refrigeration to maintain a region at low temperature of - 38°C. Determine: (1) C.O.P. of Carnot refrigerator (2) Higher temperature of the cyole (3) The heat delivered and C.O.P. when this device is used as heat pump.

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.

Chapter11: Heat Transfer By Radiation

Section: Chapter Questions

Problem 11.56P

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Concept explainers

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.

Question

A Carnot refrigerator reguires 1.3 kW per tonne of refrigeration to maintain a region at
low temperature of - 38°C. Determine: (1) C.O.P. of Carnot refrigerator (2) Higher
temperature of the cyofe (3) The heat delivered and C.O.P. when this device is used as heat
pump.

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