Cycle Analysis Coefficient of Performance P refrigerating effect 3 2 Pcond COP= h-hs h2h Pevap specific work h Volumetric Capacity refrigerating effect indicator of the compressor h1-h4 displacement requirement qv compressor inlet specific volume 上游通大学 Wednesday,May 03,2017 10 SHANGHAI JLAO TONG UNIVERSITYWednesday, May 03, 2017 10 Cycle Analysis Coefficient of Performance Volumetric Capacity P h 3 2 4 1 pcond pevap  q = v refrigerating effect compressor inlet specific volume h h v 1 4 1   refrigerating effect 1 4 2 1 specific work COP = h h h h   indicator of the compressor displacement requirement