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23 Nov 2019

an ideal air conditioner takers heat from room at 70 F andtransfers it to the out doors which at 96F . FOR EACH JOULE OFELECTRICAL ENERGY REQUIRED TO OPERATE the air conditioner, how manyBTU of heat are removed from the room ?

an ideal refrigerator working btween th and tc has a coefficient ofperformance given by k

J= 9.478* 10^-4 , BTU= 1.055* 10^3 J


TC (in K) = ??
TH (in K) =??

BTU/J = ???

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2) an ideal heat pump is used to heat a building. the outside t is-5 c and the inside is 22 c . the coefficient of performance asarefrigerator is k= 3.2 , and the heat pump deliver Qh= 7.54 mJ OFHEAT TO THE BUILDING each hour.at what rate (waats) must work bedone to run the heat pump?

Qh= 7.54 * 10^6 J , K= 3.2 , k=Qc/w =Qh-w/ w , w=1.795 * 10^6J


PAWER= ???

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Keith Leannon
Keith LeannonLv2
10 Sep 2019

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