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首页> 外文期刊>Energy Conversion & Management >Comparison of different CO_2 liquefaction processes and exergoeconomic evaluation of integrated CO_2 liquefaction and absorption refrigeration system
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Comparison of different CO_2 liquefaction processes and exergoeconomic evaluation of integrated CO_2 liquefaction and absorption refrigeration system

机译：不同CO_2液化过程的比较和综合CO_2液化和吸收制冷系统的exergo经济评价

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The liquefaction of captured CO2 from power plants is one of the means to prepare the CO2 stream for transportation to utilization or capture site. In this study, four CO2 liquefaction systems are compared in terms of their energy, exergy, and economic performance. It is concluded that the integrated absorption refrigeration system shows the best performance among all with a better exergy efficiency, and more than 20% lower capital, operational, and life cycle costs. To have a deeper insight into the performance of the integrated absorption refrigeration systems, an exergoeconomic analysis is implemented. The exergoeconomic factors related to the devices of this process show some considerable performance enhancement potentials, especially with the upgrade of heat exchangers. The share of both compression and refrigeration in liquefaction of the CO2 stream is investigated in energy analysis alongside with COP of each refrigeration system. The exergy destruction rates, exergy efficiency of equipment, and exergy efficiency of refrigeration systems are calculated in exergy analysis. In economic analysis, capital and operational costs, as well as the impact of different parameters on life cycle costs, are investigated. Finally, exergoeconomic analysis shows the cost flows in the integrated absorption refrigeration system, showing the share of different costs in the overall liquefaction process. The software packages used for this study are Aspen HYSYS V 11, Aspen Process Economic Analyzer, and Matlab.
机译：来自发电厂的捕获二氧化碳的液化是制备CO2流以运输到利用或捕获部位的方法之一。在这项研究中，在其能量，高度和经济性能方面进行比较四种CO 2液化系统。得出结论是，集成吸收制冷系统表现出最佳性能，以更好的高度效率，资金，运作和生命周期成本超过20％以上。为了更深入地了解集成吸收制冷系统的性能，实施了Exergo经济分析。与该过程的器件相关的Exergo经济因素表明了一些相当大的性能增强潜力，特别是随着换热器的升级。在与每种制冷系统的COP旁边的能量分析中研究了CO 2流液化中的压缩和制冷的份额。在Deergy分析中，计算了漏洞的破坏率，设备的高度效率，以及制冷系统的漏洞效率。在经济分析，资本和运营成本以及不同参数对生命周期成本的影响，得到了调查。最后，Exergo经济分析显示了集成的吸收制冷系统中的成本流动，显示了整个液化过程中不同成本的份额。用于本研究的软件包是Aspen Hysys V 11，Aspen流程经济分析仪和Matlab。

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