Heat Pumps S.J.T.U. Phase Transformation and Applications All real Hot reservoir Coefficient of Performance O以 refrigerators and heat Limit for ideal pumps require General definition Carnot case work to get heat to flow CP=QH QH TH from a cold w QH-Qc TH-Tc area to a Ideal coefficient warmer area. Cold reservoir of performance SJTU Physical Chemistry of Materials Spring2010©X.J.Jin Lecture 5 property relation IPhase Transformation and Applications S. J. T. U. SJTU Physical Chemistry of Materials Spring 2010 © X. J. Jin Lecture 5 property relation I Heat Pumps