4E analysis and optimization of absorption-compression cascade refrigeration system driven by waste heat
In order to create a low temperature environment for ships and refrigerated heavy trucks and improve the utilization efficiency of low grade waste heat from engine,an absorption-compression cascade refrigeration system driven by waste heat from engine is proposed.The model is established and simulated from the perspectives of energy,exer-gy,economy and environment.Through multi-objective optimization,the optimal operat-ing parameters of the system are obtained by taking the low-temperature grade evapora-tion temperature,low-temperature grade condensing temperature,high-temperature grade condensing temperature and cascade heat transfer temperature difference as decision varia-bles.The results show that under the optimal operating conditions,the COP of the system can reach 1.55,the exergy efficiency can reach 0.246,and the total cost can reach 15 055.23 $ per year.
cascade refrigerationwaste heatcoefficient of performanceexergyeco-nomicoptimization
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维普
