When a man returns to his well-sealed house on a summerday,he finds that the house is at 32°C.He turns on the airconditioner

When a man returns to his well-sealed house on a summerday,he finds that the house is at 32°C.He turns on the airconditioner,which cools the entire house to 20°C in 15min.If the COP of the air-conditioning system is2.5,determine the power drawn by the airconditioner.Assume the entire masswithin the house is equivalent to 800 kg of air for which Cv= 0.72 kJ/kg/°C and Cp= 1.0kJ/kg/°C.ShowtheeffectofCOPonthepowerdrawnbytheairconditioner.Alsoshowtheeffectofchangeincoolingtime(?t= 12min,15 minand 18min) onCOP andpower (kW)drawnby theair conditioner.


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