微型燃气轮机与有机朗肯循环装置组成联合循环的设计与分析  

Design and Analysis of the Combined Cycle With the Micro Gas Turbine and Organic Rankine Cycle Settings

作　　者：赵巍[1] 杜建一[1] 徐建中[1] 

机构地区：[1]中国科学院工程热物理研究所,北京市海淀区100080

出　　处：《中国电机工程学报》2009年第29期19-24,共6页Proceedings of the CSEE

基　　金：国家高技术研究发展计划项目(863计划)(2007AA050501)~~

摘　　要：提出筛选有机朗肯循环工质的方法。基于能的"温度对口,梯级利用"原理和有机工质的热力性质,讨论用于增大输出轴功的微型燃气轮机与有机朗肯循环装置组成的联合循环,给出该联合循环的流程布置。用此布置将国内某正在研制中的微型燃气轮机与使用R123为底循环工质的有机朗肯循环装置组成联合循环,进行模拟计算和敏感性分析。结果表明,该联合循环可将热效率提高9.4%,达到38.4%,循环增压比、最高温度、回热度和环境温度的变化均会对热效率产生一定的影响。The approach to select appropriate working fluids of the organic Rankine cycle for waste heat recovery at different temperatures was proposed. A combined cycle with the micro gas turbine and organic Rankine cycle settings, which is used to increase the shaft work output, was discussed based on the principle of energy cascade utilization and the working fluid thermodynamic properties. The process configuration of the combined cycle was presented. With the configuration, a domestic micro gas turbine still under development combining with ORC cycle settings using R123 as working fluids formed the combined cycle, which was simulated and analyzed. Results show that the combined configuration increases the thermal efficiency by 9.4 percent to 38.4 percent and the press ratio of the compressor, the maximum temperature of the cycle, the effectiveness of the recuperator and the ambient temperature affect the thermal efficiency to a certain extent respectively.

关 键 词：微型燃气轮机 有机朗肯循环 联合循环 

分 类 号：TK472[动力工程及工程热物理—动力机械及工程]