Optimized efficiency at maximum Ω̇ figure of merit and efficient power of power law dissipative Carnot-like heat engines

Abstract

Abstract In the present work, a power law dissipative Carnot-like heat engine cycle of two irreversible isothermal and two irreversible adiabatic processes with finite time non-adiabatic dissipation is considered and the efficiency under two optimization criteria Ω ̇ figure of merit and efficient power, χ ep is studied. The generalized extreme bounds of the optimized efficiency under the above said optimization criteria are obtained. The lower and upper bounds of the efficiency for the low dissipation Carnot-like heat engine under these optimization criteria are obtained with the dissipation level δ = 1. In corroboration with efficiency at maximum power, this result also shows that the presence of non-adiabatic dissipation does not influence the extreme bounds on the efficiency optimized by both these target functions in the low dissipation model.