Optimized efficiency at maximum $\dotΩ$ figure of merit and efficient power of Power law dissipative Carnot like heat engines

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 $\dot{\Omega}$ figure of merit and efficient power, $\chi_{ep}$ 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 dissipation level $\delta$ = 1. In corroborate with efficiency at maximum power, this result also shows 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.