摘要
以西门子SGT5-8000H燃气轮机为研究对象,基于半经验公式和经验公式推测透平冷却空气量并建立燃气轮机逐级计算模型,利用运行数据和参考文献对模型进行验证。应用模型分析得:总冷却空气量和第一级静叶冷却空气量随负荷增加或环境温度升高而升高,总冷却空气占比稳定在20%左右,其中第一级静叶冷却空气占比54%以上;燃气轮机在高负荷下效率增至38.6%;在高负荷或低环境温度下,燃烧室部件可能过热。
Siemens SGT5-8000H gas turbine was taken as the research object.Based on the semi-empirical formula and empirical formula,the turbine cooling air volume was estimated and the gas turbine model was established.The model was verified by operating data and references.The analysis of the application model shows that the total cooling air volume and the cooling air volume of the first stage vane increase with the increase of load or ambient temperature,and the proportion of the total cooling air is stable at about 20%,of which the first stage vane cooling air accounts for 54%or more.The efficiency of the gas turbine increases to 38.6%under high load.Under high load or low ambient temperature,the combustion chamber components may overheat.
作者
谭超
赵节坚
柳治民
梁其锋
方迅舟
加异卓
Tan Chao;Zhao Jiejian;Liu Zhimin;Liang Qifeng;Fang Xunzhou;Jia Yizhuo(Huadian Fuxin Guangzhou Energy Co.,Ltd., Guangzhou 511300, China)
出处
《燃气轮机技术》
2022年第2期19-22,38,共5页
Gas Turbine Technology
关键词
燃气轮机
透平冷却
冷却空气
环境温度
建模
gas turbine
turbine cooling
cooling air
ambient temperature
modeling
