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Applicant:
Central University of Tamil Nadu 
Author:
M Ponmurugan 
Corresponding Authors:
I Iyyappan and M Ponmurugan 
DOI #:
https://doi.org/10.1088/1742-5468/aaa8ef 
Title:
Relations between the efficiency, power and dissipation for linear irreversible heat engine at maximum trade-off figure of merit 
Journal:
Journal of Statistical Mechanics: Theory and Experiment 
Year:
2018 
Volume:
2018 
Page:
033202 
Keywords:
figure of merit, heat engine, Omega criterion , Optimization 
Abstract:
A trade of figure of merit ($\dot{\Omega}$ ) criterion accounts the best compromise between the useful input energy and the lost input energy of the heat devices. When the heat engine is working at maximum $\dot{\Omega}$ criterion its efficiency increases significantly from the efficiency at maximum power. We derive the general relations between the power, efficiency at maximum $\dot{\Omega}$ criterion and minimum dissipation for the linear irreversible heat engine. The efficiency at maximum $\dot{\Omega}$ criterion has the lower bound $ \newcommand{\e}{{\rm e}} 3\eta_{\rm ME}/4$ and it can reach up to $ \newcommand{\e}{{\rm e}} \eta_{\rm ME}$ , where $ \newcommand{\e}{{\rm e}} \eta_{\rm ME}$ is the maximum efficiency. Further, for time-reversal symmetric or anti-symmetric case our results show that the efficiency at maximum $\dot{\Omega}$ criterion is bounded by 3/4 of the Carnot efficiency when the minimum dissipation is zero. 
Entered by:
M Ponmurugan on 2020-09-06 
 
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