engine efficiency November 21, 2023 One-minute read Sparisoma Viridi fi1101heat enginerefrigeratorheat engine Link to headingefficiency ε=WoutputWinput=∣W∣∣QH∣.(1)\tag{1} \varepsilon = \frac{W _{\rm output}}{W _{\rm input}} = \frac{| W |}{| Q_H| }. ε=WinputWoutput=∣QH∣∣W∣.(1)Carnot engine εC=TH−TLTH.(2)\tag{2} \varepsilon_C = \frac{T_H - T_L}{T_H}. εC=THTH−TL.(2)refrigerator Link to headingcoefficient of performance K=WoutputWinput.(3)\tag{3} K = \frac{W _{\rm output}}{W _{\rm input}}. K=WinputWoutput.(3)Carnot refrigerator KC=TLTH−TL(4)\tag{4} K_C = \frac{T_L}{T_H - T_L} KC=TH−TLTL(4)