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首页> 外文期刊>Energy Conversion & Management >Optimal working fluids and economic estimation for both double stage organic Rankine cycle and added double stage organic Rankine cycle used for waste heat recovery from liquefied natural gas fueled ships
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Optimal working fluids and economic estimation for both double stage organic Rankine cycle and added double stage organic Rankine cycle used for waste heat recovery from liquefied natural gas fueled ships

机译：用于双阶段有机兰汀循环的最佳工作流体和经济估计，添加了用于废热回收的液化天然气燃料船的废热回收

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摘要

Double and added double stage organic Rankine cycle systems are configured to recover exhaust gas waste heat of dual fuel engines. To evaluate the performance of the models proposed here, energy, exergy and economic analyses are performed. Several working fluids are evaluated for recommendation for double and added double stage organic Rankine cycle systems. In the double stage organic Rankine cycle, cycle 1 and cycle 2 are connected in parallel. Working fluids R123, R141b, and R601 are used in cycle 1, and R245fa, R236ea, and R1233zd in cycle 2. In the double stage organic Rankine cycle, the working fluid combinations of R601-R1233zd, R601R245fa and R123-R245fa show better performance when considering power, heat transfer area and payback period, which are 1760 kW, 2108.9 m2 and 4.21 year, respectively for R601-R245fa. In the added double stage organic Rankine cycle, cycle 1 and cycle 2 are connected in two stages and cycle 1 and cycle 3 in parallel. The net power of the working fluid combinations of R123-R245fa and R123-R1233zd are 1799 kW and 1782 kW, respectively, which are higher than those of the others. Further, for R123-R245fa, the heat transfer area and payback period are 3352 m2 and 6.20 year, respectively, which is better compared to those of other working fluid combinations.
机译：双倍和添加的双级有机朗肯循环系统配置为回收双燃料发动机的废气废热。为了评估本文所提出的模型的性能，进行能量，漏洞和经济分析。评估几种工作流体以进行双加入双级有机朗肯循环系统的推荐。在双级有机朗肯循环中，循环1和循环2并联连接。工作流体R123，R141B和R601用于循环1，R245FA，R236EA和R1233ZD在循环2中。在双阶段有机朗肯循环中，R601-R1233ZD，R601R245FA和R123-R245FA的工作流体组合表现出更好的性能考虑到R601-R245FA的电力，传热面积和回收期，分别为1760 kW，2108.9平方米和4.21年。在添加的双级有机朗肯循环中，循环1和循环2并联地连接在两个阶段和循环1和循环3。 R123-R245FA和R123-R1233ZD的工作流体组合的净功率分别为1799千瓦，782千瓦，其高于其他物质。此外，对于R123-R245FA，传热面积和回收期分别为3352平方米和6.20年，与其他工作流体组合的组合相比，与其他工作流体组合更好。

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