危废焚烧处理耦合有机朗肯循环系统工质筛选与热力学优化  

Working fluid screening and thermodynamic optimization of hazardous waste incineration coupled organic Rankine cycle system

作　　者：张曼铮 肖猛 闫沛伟 苗政 徐进良 纪献兵 ZHANG Manzheng;XIAO Meng;YAN Peiwei;MIAO Zheng;XU Jiniang;JI Xianbing(Beijing Key Laboratory of Multi-phase Flow and Heat Transfer of Low-grade Energy(North China Electric Power University),Beijing 102206,China)

机构地区：[1]低品位能源多相流与传热北京市重点实验室(华北电力大学),北京102206

出　　处：《化工学报》2023年第8期3502-3512,共11页CIESC Journal

基　　金：国家重点研发计划项目(2019YFC1907002);国家自然科学基金项目(51776064)。

摘　　要：危险废弃物焚烧处理产生的热量除了用于满足自身系统热量需求和损失外,其余大部分热量可以作为低温发电系统热源。利用该余热锅炉产生的饱和蒸汽作为潜热型热源驱动有机朗肯循环系统做功,并基于热力学和热经济学分析进行工质筛选。研究进一步对危废焚烧系统的基础流程进行优化,并分析了回热对ORC系统的热力学性能的影响。结果表明,工质Benzene表现最优,且危废系统优化后做功能力的提升,相较于基础结构增加了24.5%,回热后ORC系统净输出功提升了19.98%,热效率提升了35.57%,?效率提升了19.99%。In addition to meeting the heat demand and loss of the own system,most of the heat generated by the incineration of hazardous waste can be used as a heat source for the low-temperature power generation system.The saturated steam generated from the waste heat boiler is used as a latent heat type heat source to drive the organic Rankine cycle system.The screening of working fluid is performed based on the thermodynamic and thermo-economic analysis.The basic process of the hazardous waste incineration system was further optimized.The regenerative ORC was analyzed and compared with the basic ORC.The results show that Benzene can provide the optimal performance and is suggested as the ORC working fluid.The optimization of the hazardous waste system increases the ORC capacity by 24.5%.Compared with the basic ORC,the net output work,thermal efficiency,and exergy efficiency of the regenerative ORC system are increased by 19.98%,35.57%,and 19.99%,respectively.

关 键 词：废物处理 危废焚烧炉 有机朗肯循环 工质筛选 热力学 优化 经济学分析 

分 类 号：TK123[动力工程及工程热物理—工程热物理]