低温工业余热利用ORC工质选择  

Working Fluid Selection of Organic Rankine Cycle for Low-Temperature Industrial Waste Heat Utilization

作　　者：谢攀[1] 隆瑞[1] 刘政[1] 刘志春[1] 刘伟[1] 

机构地区：[1]华中科技大学能源与动力工程学院,武汉430074

出　　处：《工程热物理学报》2016年第9期1834-1837,共4页Journal of Engineering Thermophysics

基　　金：国家重点基础研究发展计划(No.2013CB228302)

摘　　要：本文针对以85-200℃的低温工业余热作为热源的有机朗肯循环系统,基于热力学第一定律分析方法,以R245fa、R600a、R601等19种潜在工质作为研究对象,计算各有机工质在不同工业余热温度、蒸发温度及蒸发器出口过热度条件下的系统热效率,为低温工业余热资源不同温度范围匹配效率最优的有机工质。结果表明：各温度段低温余热资源对应效率最优的有机工质分别为R290、R600、CF_3I和R601,而目前应用较多的R134a和R245 fa在对应温度段的热效率也仅次于上述工质。The present study calculates tile thermal efficiency of Organic Rankine Cycle power generation system whose heat source are tile industrial waste heat in the temperature range of 85-200℃ in different industrial waste heat temperature, evaporating temperature and evaporator outlet superheat conditions on the base of using the first law of thermodynamics. Choosing the most suitable organic working medium from 19 pure potential working fluid such as R245fa, R600a, R601 etc. fbr low-temperature industrial waste heat. The results show that the optimum working fluid of low-temperature waste heat in different temperature ranges are R290, R600, CF3I and R601. R245fa and R134a have got wide application nowadays whose thermal efficiency after above-mentioned working mediums.

关 键 词：低温余热 有机朗肯循环 热效率 工质选择 

分 类 号：TK124[动力工程及工程热物理—工程热物理]