An efficient optimization and comparative analysis of cascade refrigeration system using NH3/CO2 and C3H8/CO2 refrigerant pairs
作者： Vivek Patel , Deep Panchal , Anil Prajapati , Anurag Mudgal , Philip Davies
DOI: 10.1016/J.IJREFRIG.2019.03.001
关键词:
摘要: Abstract A cascade refrigeration system operating with CO2 in the low temperature circuit and NH3 as well C3H8 high are investigated for thermo-economic optimization. Optimization results used comparative analysis of both refrigerant pairs (NH3/CO2 vs. C3H8/CO2). problem is formulated to minimize total annual cost exergy destruction system, solved using a heat transfer search algorithm. Four parameters such evaporator temperature, condenser condensing circuit, difference An application example presented. Results obtained form Pareto-optimal points. Comparative reveal that C3H8/CO2 pair offered 5.33% lower 6.42% higher compared NH3/CO2 pair. The effect design variables its sensitivity performance also presented discussed.
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