Agricultural Engineering > GATE 2019 > Refrigeration
A chiller working on mechanical vapour compression refrigeration system (COP = 4.5) is used for cooling 12500 kg of fresh cow milk (cp = 3.8 kJ kg⁻¹ K⁻¹) from 30 °C to 4 °C in 3 hours. Assuming ideal compression process, the power consumed by the electric motor in kW and the tonnage of refrigeration (TR), respectively are
A
25.4 and 32.5
B
25.4 and 114.3
C
32.5 and 25.4
D
114.3 and 25.4

Correct : a

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