基于某百千瓦级微型燃气轮机的HAT循环热力系统设计与分析  

Design and Analysis of Humid Air Turbine Cycle Based on a 100 kW Class Micro Gas Turbine

作　　者：张浩生 赵丽凤 王波[1,2] Zhang Haosheng;Zhao Lifeng;Wang Bo(University of Chinese Academy of Sciences,Beijing 100049,China;Key Laboratory of Advanced Energy and Power(Institute of Engineering Thermophysics),Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]中国科学院大学,北京100049 [2]中国科学院先进能源动力重点实验室(工程热物理研究所),北京100190

出　　处：《燃气轮机技术》2022年第4期11-19,共9页Gas Turbine Technology

基　　金：国家科技重大专项(2017-I-0009-0010)。

摘　　要：为了研究基于微型燃气轮机的湿空气透平(humid air turbine,HAT)循环用于热电联供的热力性能,建立了某百千瓦级回热循环微型燃气轮机及其HAT循环的热力性能模型,优化了循环参数,分析了压损与换热温差对循环效率的影响,并对HAT循环热电联供效率与回热循环进行了比较分析。研究表明基于回热循环微型燃气轮机构建的HAT循环折合发电效率可以达到29.66%,比回热循环提高4.28个百分点。HAT循环的热电比范围为0~2.8,回热循环的热电比范围为0~2.4。当热电比为0~1.6时,HAT循环热电联供效率高于回热循环;当热电比为1.6~2.4时,回热循环效率高于HAT循环。本研究为HAT循环热电联供系统的设计与应用提供参考。In order to study the thermodynamic performance of humid air turbine(HAT)cycle based on micro gas turbine for combined heat and power supply,the thermodynamic performance model of a 100 kW class recuperative micro gas turbine was established.The HAT cycle was constructed based on the recuperative micro gas turbine.The parameters of HAT cycle were optimized,and the influence of pressure loss and heat exchange approach temperature on cycle performance were analyzed.The energy efficiency of HAT cycle combined heat and power system were compared with that of recuperative cycle.The results show that the efficiency of HAT cycle based on the recuperative micro gas turbine can reach 29.66%,which is 4.28 percentage points higher than recuperative cycle.The thermoelectric ratio can vary from 0 to 2.8 with HAT cycle and from 0 to 2.4 with recuperative cycle.When the thermoelectric ratio varies from 0 to 1.6,the efficiency of HAT cycle combined heat and power are higher than that of recuperative cycle,and when the thermoelectric ratio varies from 1.6 to 2.4,the efficiency of recuperative cycle is higher than that of HAT cycle,which provides reference for the design and application of HAT cycle combined heat and power system.

关 键 词：微型燃气轮机 回热循环 HAT循环 热电联供 热力性能 

分 类 号：TK472[动力工程及工程热物理—动力机械及工程]