Optimized Coefficient of performance of Power law dissipative Carnot like Refrigerator

K. Nilavarasi, M. Ponmurugan

Published 2020-01-06Version 1

The present work investigates the generalized extreme bounds of the coefficient of performance for the power law dissipative Carnot-like refrigerator under $\chi$ and $\dot{\Omega}$ optimization criteria. It is found that the lower bound of coefficient of performance under the optimized $\chi$ criterion restrict the level of power law dissipation $\delta$. Such a restriction not observed in the $\dot{\Omega}$ criterion shows that the $\dot{\Omega}$ optimization is more profound than the $\chi$ criterion for refrigerator working at different dissipation levels. The lower and upper bounds of the coefficient of performance for the low dissipation Carnot-like refrigerator are obtained with $\delta=1$. The theoretical predictions obtained from the present model match closely with the measured coefficient of performance of real refrigerators.