太阳能有机朗肯循环研究与应用综述

太阳能有机朗肯循环系统即采用有机朗肯循环(Organic Rankine Cycle,ORC),利用低沸点有机工质,将低品位的太阳辐射热能转换为高品位的机械能或电能进行输出,可进一步提高太阳能的利用率,降低系统成本。本文基于国内外相关研究成果,介绍了太阳能ORC系统及工作原理,分析了工质优选、系统性能分析与评价时所需要考虑的因素,并对太阳能ORC系统的改进与应用情况进行了综述。最后针对目前太阳能有机朗肯循环研究中存在的集热效率及系统效率不高、技术推广能力有限等问题提出了合理化建议。

Summary of research and application of solar organic Rankine cycle

The solar organic Rankine cycle system uses an Organic Rankine Cycle(ORC)to convert low-grade solar radiant heat energy into high-grade mechanical energy or electrical energy for output,which can further improve the utilization rate of the solar energy and reduce system costs.Based on the relevant research results at home and abroad,this paper introduced the solar energy ORC system and its working principle,analyzed the factors that needed to be considered in the optimization of working fluids,system performance analysis and evaluation,and summarized the improvement and application of solar energy ORC system.In view of the current solar energy organic Rankine cycle research,the paper put forward some reasonable suggestions for the current solar energy organic Rankine cycle research,such as limited heat collection efficiency,low system efficiency and limited technology promotion capabilities.