A cold store maintains storage air temperature of minus 23C in an ambient temperature of 27C. The

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A cold store maintains storage air temperature of minus 23C in an ambient temperature of 27C. The plant has evaporating and condensing temperature of minus 30C and 40C and consumes 2kW of power. Assuming the refrigeration plant possess a Carnot efficiency of 50%, what is the cooling load of the store?