Question

A cold storage is to be maintained at -10º C while the surrounding are at 37º C.

The heat leakage from the surroundings into the cold storage is estimated to be 29kw.

The actual C.O.P of the refrigeration plant is one-third of an ideal plant working

between the same temperature. Find the power required to drive the plant..

Answer 1

Answer:

Concept:

Actual COP Ideal cop

Calculation:

Given:

Temperature of Cold storage (TL) = -5°C, Temperature of surrounding (TH) = 35°C, ,

Heat leakage = 29 kW

To find: Power required to drive

Ideal COP

F1 S.C Madhu 24.03.20 D1

∴ Ideal COP = 6.7

∴ Actual COP =

Now, we know that

∴ Winput= (COP)-1 Qleakage

∴ Winput= 13 kW