Clausius inequality Reservoir at Tres To realize Heat transfer with No irreversibility Intermediary! Combined cycle Kelvin scale for the cycle: system boundary 60' Tres (1) System Combined system:Energy balance w.o.baacoobaace...a.a.ceobeacoooo System boundary dEc=δQ' δWc (2) Eliminate 8Q' ->6W+6W' System:receive 80 from 0 reservoir at Tres δ0 WC =Tres -dEc Integration along a single cycle Energy exchange Wc with single reservoir Kelvin-Plank statement 上海充通大学 Cons April 18,2018 3 SHANGHAI JIAO TONG UNIVERSITYApril 18, 2018 3 Clausius inequality System: receive Q from reservoir at Tres To realize Heat transfer with No irreversibility Kelvin scale for the cycle: Combined system: Energy balance Eliminate δQ’ δW+δW’ Integration along a single cycle Const. Energy exchange with single reservoir Kelvin-Plank statement (1) (2)