中国电机工程学报2024，Vol.44Issue(14)：5620-5630,中插15,12.DOI:10.13334/j.0258-8013.pcsee.230151
重型燃气轮机侧向进气蜗壳参数化设计方法研究
Research on Parametric Design Method of Radial Inlet Duct for Heavy-duty Gas Turbine
摘要
Abstract
The radial inlet duct of a heavy-duty gas turbine results in additional losses and inlet distortion,thereby affecting the efficiency and stability of the compressor and subsequently impacting the efficiency of the gas turbine.Currently,the design of radial inlet ducts is based solely on empirical data,and a systematic parametric design method for such ducts has not yet been developed.Furthermore,the recommended range of values for each key dimensionless parameter is unavailable.Based on volute design theory,this paper simplifies the design of radial inlet duct and investigates its internal flow mechanisms using numerical simulations.The study identifies that the primary sources of flow loss within the inlet volute are the shear vortices beside the guide cone,the wake of struts,and the boundary layer in the contraction.Based on these observations,a parametric design method is proposed to analyze the effects of geometric structures on total pressure loss and flow distortion.The results indicate that the inlet diameter of the contraction,the diameter of the cone,and the cone angle significantly influence the aerodynamic performance of the inlet duct.Finally,the paper provides recommended ranges for design parameters,offering a foundation for future guidelines in designing high-performance radial inlet ducts.关键词
燃气轮机/进气道/参数化设计/总压损失/进气畸变Key words
gas turbine/inlet duct/parametric design/total pressure loss/inlet distortion分类
能源科技引用本文复制引用
李晓晔,李雪松,马琨,任晓栋,李宇红,顾春伟..重型燃气轮机侧向进气蜗壳参数化设计方法研究[J].中国电机工程学报,2024,44(14):5620-5630,中插15,12.基金项目
国家自然科学基金项目(52176039) （52176039）
国家科技重大专项项目(J2019-II-0017-0038,2017-II-0007-0021). Project Supported by National Natural Science Foundation of China(52176039) （J2019-II-0017-0038,2017-II-0007-0021）
National Science and Technology Major Project(J2019-II-0017-0038,2017-II-0007-0021). （J2019-II-0017-0038,2017-II-0007-0021）
