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首页> 外文期刊>International journal of green energy >Performance analysis and multi-objective optimization of cooling tower assisted vapor compression-absorption cascaded and hybrid refrigeration systems
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Performance analysis and multi-objective optimization of cooling tower assisted vapor compression-absorption cascaded and hybrid refrigeration systems

机译：冷却塔辅助蒸汽压缩吸收级联和混合制冷系统的性能分析与多目标优化

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摘要

Present work compares and optimizes the performance of cooling tower assisted cascaded and hybrid configurations of vapor compression-absorption integrated refrigeration system. Both the systems are designed to estimate their performance, size, and cost for the cooling capacity of 100 kW. Further, optimization strategies based on the Coefficient of Performance (COP), operational cost, and investment cost are followed to make the systems competitive. Four optimization cases, i.e. the COP single-objective, the total operational cost single-objective, the total investment cost single-objective, and the multi-objective optimization are performed and compared for both the systems. Comparative study of cascaded refrigeration system (CRS) with hybrid refrigeration system (HRS) shows that the COP and second law efficiency of CRS is 82.1% and 25.0%, respectively more as compared to HRS; whereas, the CO2 penalty cost of CRS is almost half of HRS. The efficient energy utilization and lower CO2 emission yields 46.1% lower annual operational cost in HRS as compared to CRS. Further, the economic analysis predicts that the investment cost of CRS is 10% less than that of HRS for same cooling capacity. Therefore, based on combined energy, exergy, environmental, and economic (4E) analyses, it can be concluded that the performance of CRS is better as compared to HRS.
机译：目前的工作比较和优化冷却塔辅助级联和蒸汽压缩吸收综合制冷系统的混合配置的性能。这两个系统都设计用于估计其性能，尺寸和降低电压为100 kW的成本。此外，基于性能系数（COP），运营成本和投资成本的优化策略是遵循的，使系统具有竞争力。四个优化案例，即COP单目标，总运营成本单目标，总投资成本单目标以及多目标优化，并对系统进行比较。级联制冷系统（CRS）与混合制冷系统（HRS）的比较研究表明，与HRS相比，CRS的COP和第二律效率分别为82.1％和25.0％;而CRS的二氧化碳罚款是HRS的一半。与CRS相比，高效的能量利用率和低二氧化碳排放产量在人力资源中降低年度业务成本46.1％。此外，经济学分析预测，CRS的投资成本比HRS相同的低10％少10％。因此，基于复合能源，火，环境和经济（4E）的分析，可以得出结论，CRS的性能更好，因为相比小时。

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