Answer to Question #329728 in Mechanical Engineering for xyz

Question

A refrigerator unit working on Bell Coleman cycle takes air from cold chamber at -10 °C and compresses it from 1 bar to 6.5 bar with index of compression being 1.2. The compressed air is cooled to a temperature of 25 °C before it is expanded in the expander where the index of expansion is 1.35, determine,

a. COP

b. Quantity of air circulated per minute for production of 2000 kg of ice per day at 0 °C from water at 20 °C

c. Capacity of the plant in tons of refrigeration Assume, C₂ = 1 kJ/kg k for air.

Answer 1

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