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Integration of Low-level Waste Heat Recovery and Liquefied Nature Gas Cold Energy Utilization 被引量:16

Integration of Low-level Waste Heat Recovery and Liquefied Nature Gas Cold Energy Utilization
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摘要 Two novel thermal cycles based on Brayton cycle and Rankine cycle are proposed, respectively, which integrate the recovery of low-level waste heat and Liquefied Nature Gas (LNG) cold energy utilization for power generation. Cascade utilization of energy is realized in the two thermal cycles, where low-level waste heat,low-temperature exergy and pressure exergy of LNG are utilized efficiently through the system synthesis. The simulations are carried out using the commercial Aspen Plus 10.2, and the results are analyzed. Compared with the conventional Brayton cycle and Rankine cycle, the two novel cycles bring 60.94% and 60% in exergy efficiency, respectively and 53.08% and 52.31% in thermal efficiency, respectively. 分别地,二个新奇热周期基于 Brayton 周期和 Rankine 被建议它集成低级废热和液化性质气体(LNG ) 的恢复为发电的冷精力利用。在低级废热,低温度的 exergy 和 LNG 的压力 exergy 通过系统合成高效地被利用的地方,精力的串联利用在二个热周期被认识到。模拟加 10.2 用商业白杨被执行,并且结果被分析。与常规 Brayton 周期和 Rankine 相比,二个新奇周期在 exergy 效率带 60.94% 和 60% ,分别地并且 53.08% 和 52.31% 在热效率分别地。
出处 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2008年第1期95-99,共5页 中国化学工程学报(英文版)
基金 the Science and Technology Foundation of Shaanxi Province (No.2002K08-G9).
关键词 recovery of low-level waste heat LNG cold energy utilization power generation cascade utilization 低温位 废热回收 液化天然气 冷能利用
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