| 非绝热小燃机热力学模型分析 |
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| 引用本文： | 龚建波,林峰,徐纲,聂超群.非绝热小燃机热力学模型分析[J].工程热物理学报,2009,30(10). |
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| 作者姓名： | 龚建波 林峰 徐纲 聂超群 |
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| 作者单位： | 1. 中国科学院工程热物理研究所先进能源与动力重点实验室,北京,100190;中国科学院研究生院,北京,100190
2. 中国科学院工程热物理研究所先进能源与动力重点实验室,北京,100190 |
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| 基金项目： | 国家重点基础研究发展规划 |
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| 摘 要： | 以小型燃气轮机为研究对象,针对热端部件涡轮通过固壁向压气机传热,建立了压气机和涡轮非绝热运行工况热力学模型.基于一定假设,提出不同的效率定义式,并分析了影响各种效率改变的因素及变化趋势,发现测量效率不能准确反映部件的实际气动能力,它对压气机和涡轮传热效率的估计均存在偏差.进一步从热力循环角度研究了热量传递如何改变整机系统实际出功量和效率,结果表明不同的热量传递方式以及压比温比的改变都会对系统性能造成不同程度的影响.
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| 关 键 词： | 小型燃气轮机 效率 非绝热 热力学模型 |
ANALYSE OF A THERMODYNAMIC MODEL OF A NON-ADIABATIC SMALL GAS TURBINE |
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| GONG Jian-Bo,LIN Feng,XU Gang,NIE Chao-Qun.ANALYSE OF A THERMODYNAMIC MODEL OF A NON-ADIABATIC SMALL GAS TURBINE[J].Journal of Engineering Thermophysics,2009,30(10). |
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| Authors: | GONG Jian-Bo LIN Feng XU Gang NIE Chao-Qun |
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| Institution: | GONG Jian-Bo~(1,2) LIN Feng~1 XU Gang~1 NIE Chao-Qun~1 (1.Key Laboratory of Advanced Energy and Power Technology,IET,CAS,Beijing 100190,China,2.Graduate University,the Chinese Academy of Sciences,China) |
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| Abstract: | A thermodynamic model of a non-adiabatic small gas turbine was built for heat transfer from a hot turbine to a compressor through the solid wall.Based on certain assumptions,different definitions of efficiencies were proposed.The factors which impact these efficiencies and their changes were investigated,and a conclusion was made,that is the efficiency of measurement can not accurately reflect the actual capacity of pneumatic,which cause deviations in heat efficiencies in the compressor and turbine.Furtherm... |
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| Keywords: | small gas turbine efficiency non-adiabatic thermodynamic model |
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