Comparative exergetic, economic and exergoeconomic analyses of a hybrid cascade refrigeration system using ammonia-propane, propane-propylene and isobutane-propane refrigerant pairs
by Kaushalendra Kumar Singh; Rajesh Kumar; Anjana Gupta
International Journal of Exergy (IJEX), Vol. 36, No. 2/3/4, 2021

Abstract: In the present study a comparative exergetic, economic and exergoeconomic analysis is done on a hybrid cascade refrigeration system using ammonia-propane, propane-propylene and isobutane-propane refrigerant pairs. Overall system cost rate, component-wise exergy destruction rates, exergetic efficiencies and exergoeconomic factors are investigated for the three refrigerant pairs at thermodynamic optimal operating conditions. The study concludes that ammonia-propane is the best refrigerant pair with maximum exergetic efficiency of 24.83% and minimum total cost rate of $564,469/yr, whereas isobutane-propane is thermodynamically superior but economically inferior than propane-propylene refrigerant pair.

Online publication date: Wed, 03-Nov-2021

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