Heat Pump Quiz

1
Heat Pump Quiz 7 Is the thermodynamically
limiting performance factor for a heat pump
higher when heating a home whose average inside
temperature is 70.0 oF in Butte in the winter,
when the average outside temperature is 17.0 oF,
or is it higher in summer, when the average
outside temperature is 61.0 oF ? Back your
answer up with the calculation of the
thermodynamic limiting performance factor for the
heat pump in these two situations. performance
factor of a heat pump - qH / w 1 / ( -w /
qH ) 1 / (thermodynamic efficiency of a heat
engine) 1 / ( TH - TL ) / TH TH / (
TH - TL ) in winter 294.3 K / ( 294.3 K -
264.8 K ) 9.98 in summer 294.3 K /
( 294.3 K - 289.3 K ) 58.9