heat engine Link to heading

  • efficiency ε=WoutputWinput=WQH.(1)\tag{1} \varepsilon = \frac{W _{\rm output}}{W _{\rm input}} = \frac{| W |}{| Q_H| }.
  • Carnot engine εC=THTLTH.(2)\tag{2} \varepsilon_C = \frac{T_H - T_L}{T_H}.

refrigerator Link to heading

  • coefficient of performance K=WoutputWinput.(3)\tag{3} K = \frac{W _{\rm output}}{W _{\rm input}}.
  • Carnot refrigerator KC=TLTHTL(4)\tag{4} K_C = \frac{T_L}{T_H - T_L}