部件性能衰减影响燃机性能的试验与仿真研究  

Component Degradation Effects on Gas Turbine Performance:an Experimental and Computational Study

作　　者：夏硕成 王辉 迟重然[1] 臧述升[1] XIA Shuo-Cheng;WANG Hui;CHI Zhong-Ran;ZANG Shu-Sheng(School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Zhuzhou AECC PST Nanfang Gas Turbine Co.,Ltd,Zhuzhou 412000,China)

机构地区：[1]上海交通大学机械与动力工程学院,上海200240 [2]株洲航发动科南方燃气轮机有限公司,株洲412000

出　　处：《工程热物理学报》2020年第8期1877-1882,共6页Journal of Engineering Thermophysics

基　　金：工信部“航空发动机及燃气轮机重大专项”基础研究项目(No.2017-I-0007-0008)。

摘　　要：燃气轮机部件性能衰减是机组运行中的常见现象,而对部件性能衰减机制的研究对燃机运行维护有重要意义。本文针对某型航改燃气轮机的一台全新机及一台折旧机,开发了基于实机试验数据的部件性能计算程序,得出了两台燃机多个工况下的部件性能试验数据。同时,本文由全新机的制造三维模型提取了通流部分几何信息,并开发了蓝光扫描与几何逆向方法、获取了折旧机的压气机与涡轮通流部分几何模型,应用定常CFD仿真方法、获取了部件性能仿真数据及其特性线。并通过试验数据拟合方法得到了更为准确的部件特性线,以此为基础开发了燃机整机性能预测程序,可为燃气轮机的性能衰减研究及精准维修提供指导。Performance degradation of gas turbine is a common phenomenon during operation.The researches on component degradation mechanism are very meaningful to gas turbine operation and maintenance.In this paper,a component performance calculation program based on real engine test data was developed for a certain type of aeroderivative gas turbine,including a new engine and a degraded one.Then,the component performance of those two engines under multiple working conditions was obtained.Besides,the flow passage geometry was extracted from the 3 D model of the new engine and that of the degraded engine was obtained through 3 D scanning and reverse reconstruction.Applying the steady CFD simulation,the component characteristic map and performance simulation data were obtained and the characteristic map was corrected based on test data.Finally,a gas turbine performance prediction program was developed,which can provide instruction for researches on gas turbine performance degradation and accurate maintenance.

关 键 词：整机试验 性能衰减 几何重构 

分 类 号：TK477[动力工程及工程热物理—动力机械及工程]