波转子对小型燃气涡轮发动机性能的影响

Impact of Wave Rotor on Performance of Small Gas Turbine Engine

波转子是一种自冷却动压交换设备,具有提高各种发动机和机械的性能与运行特性的特有优势。本文建立基于波转子技术的小型燃气涡轮发动机热力循环分析模型。研究了压气机、涡轮压比、燃烧工作条件变化等5种热力循环方案情况下波转子技术对小型燃气涡轮发动机性能的影响。探讨波转子嵌入燃气涡轮发动机后导致燃烧室工作环境的变化规律。在相同压气机压比、相同涡轮进口温度热力循环方案情况下,波转子技术提高燃气涡轮发动机性能最高,获得了基于波转子技术小型燃气涡轮发动机最佳性能优化区和燃烧室工作环境变化规律。

The wave rotor is a self-cooled dynamic pressure exchange machine that can improve the engine performance and fit diversified course. In this paper, the thermo-cycle analysis mode of a wave-rotor-topped small gas turbine engines is established. When the compressor, the turbine pressure ratio, and the turbine inlet temperature vary in the thermodynamic calculation according to the anticipated design objectives in the five considered cases, the influence of wave rotor on the performance of small gas turbine engines is investigated. The variable laws of wave rotor-applied combustor work condition is discussed. The best performance is obtained in the topped engine operates with the same compressor pres- sure ratio, inlet temperature and physical compressor like that of the baseline engine. The prime performance optimized region and the eombustor work condition of the wave-rotor-topped small gas turbine engines are obtained.