Chap.2 Definition of efficiency of ©power cycle n, Target Gain refrigeration cycle B, Efficiency= Cost heat pump cycle y COP 上游充通大 May15,2018 6 SHANGHAI BAO TONG LINIERSITYMay 15, 2018 6 Chap. 2 Definition of efficiency of power cycle η, refrigeration cycle β, heat pump cycle γ Target Gain Efficiency= Cost COP