Development and test of a Stirling engine driven by waste gases for the micro-CHP system
Development and test of a Stirling engine driven by waste gases for the micro-CHP system
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DOI：
10.1016/j.applthermaleng.2011.09.020
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发表时间：
2012-02
影响因子：
6.4
通讯作者：
Tie Li;D. Tang;Zhigang Li;Jinglong Du;Tianhao Zhou;Yu-Xiang Jia
中科院分区：
文献类型：
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作者：
Tie Li;D. Tang;Zhigang Li;Jinglong Du;Tianhao Zhou;Yu-Xiang Jia
近年来，微型热电联产系统引起了世界各国的关注。斯特林热机作为一种外热源，可应用于太阳能、沼气、中高温废气等多种热源驱动的微型热电联产系统。首先介绍了中高温废气驱动斯特林发动机的发展情况。详细介绍了所设计的斯特林发动机及其废气燃烧室的热力学设计方法和关键参数。在此基础上进行了斯特林发动机的性能试验。在测试过程中，通过热电偶监测加热器头部的温度，通过压力传感器监测斯特林发动机中工作液氦的压力。研究了输出轴功率、扭矩和转速之间的关系，分析了换热器系统中工质的压力损失。试验结果表明，1248转/分时输出轴功率可达3476瓦，与1500转/分时3901瓦的预测值吻合较好。试验结果证实了中高温废气驱动的斯特林发动机能够获得有工程应用价值的输出功率。
In recent years, micro-CHP systems are attracting world attention. As one kind of external heating engines, Stirling engines could be applied to the micro-CHP systems driven by solar, biogas, mid-high temperature waste gases and many other heat sources. The development of a Stirling engine driven by mid-high temperature waste gases is presented first. The thermodynamic design method, the key parameters of the designed Stirling engine and its combustion chamber adapted for waste gases are described in detail. Then the performance test of the Stirling engine is carried out. During the test, the temperature of the heater head is monitored by thermocouples, and the pressure of the working fluid helium in the Stirling engine is monitored by pressure sensors. The relationships among the output shaft power, torque and speed are studied, and the pressure losses of the working fluid in the heat exchanger system are also analyzed. The test results demonstrate that the output shaft power could reach 3476 W at 1248 RPM, which is in good agreement with the predicted value of 3901 W at 1500 RPM. The test results confirm the fact that Stirling engines driven by mid-high temperature waste gases are able to achieve a valuable output power for engineering application.