航空学报 > 2025, Vol. 46 Issue (5): 531745-531745   doi: 10.7527/S1000-6893.2025.31745

飞行包线内空气换热器能力边界研究及进展

何雅玲1(), 姜涛1, 杜燊1, 徐国强2   

  1. 1.西安交通大学 能源与动力工程学院 热流科学与工程教育部重点实验室,西安 710049
    2.北京航空航天大学 航空发动机研究院,北京 100191
  • 收稿日期:2024-12-31 修回日期:2025-01-13 接受日期:2025-01-22 出版日期:2025-02-11 发布日期:2025-02-10
  • 通讯作者: 何雅玲 E-mail:yalinghe@mail.xjtu.edu.cn
  • 基金资助:
    国家科技重大专项(J2019-Ⅲ-0021-0065);陕西省重点研发专项计划(2022GXLH-01-04)

Research progress on performance boundary of air heat exchanger within flight envelope

Yaling HE1(), Tao JIANG1, Shen DU1, Guoqiang XU2   

  1. 1.Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education,School of Energy and Power Engineering,Xi’an Jiaotong University,Xi’an 710049,China
    2.Research Institute of Aero-engine,Beihang University,Beijing 100191,China
  • Received:2024-12-31 Revised:2025-01-13 Accepted:2025-01-22 Online:2025-02-11 Published:2025-02-10
  • Contact: Yaling HE E-mail:yalinghe@mail.xjtu.edu.cn
  • Supported by:
    National Science and Technology Major Project of China (J2019-Ⅲ-0021-0065);The Key R&D Special Program of Shaanxi Province(2022GXLH-01-04)

摘要:

掌握航空发动机用换热器在飞行包线内的换热极限,并拓展其能力边界,是推动航空发动机朝着更大推重比方向发展的关键举措。围绕冷却冷却空气技术对换热器设计的需求展开研究,首先,回顾了当前航空发动机中典型空气换热器的构型、具有应用前景的新型换热结构;其次,提出了飞行包线内换热器能力边界的分析与拓展方法,以保障航空发动机在复杂工况下的稳定与高效运行,并且给出了非均匀布置蛇形管换热器的能力边界范围;再次,回顾了现有换热器的性能评价方法,提出了航空发动机用换热器综合性能评价图,以实现换热器综合性能的快速评价;最后,对航空发动机用空气换热器的发展前景进行了展望。

关键词: 航空发动机, 换热器, 飞行包线, 性能评价, 冷却冷却空气

Abstract:

Understanding the heat transfer limits of heat exchangers for aero-engines within the flight envelope and expanding their performance boundaries are critical measures to advance aero-engines toward higher thrust-to-weight ratios. This paper focuses on the design requirements of heat exchangers used in cooled cooling air technology. First, the structures of typical air heat exchangers in aero-engines and novel heat exchanger structures with promising applications are reviewed. Then, the method for analyzing and expanding the performance boundaries of heat exchangers within the flight envelope is proposed to ensure the stable and efficient operation of the aero-engines under complex working conditions. The performance boundary range of non-uniformly arranged serpentine tube heat exchangers is also provided. Subsequently, the existing heat exchanger performance evaluation methods are reviewed, and the comprehensive performance evaluation plot for aero-engine heat exchangers is developed. Finally, the development prospects of air heat exchangers for aero-engines are discussed.

Key words: aero-engine, heat exchanger, flight envelope, performance evaluation, cooled cooling air

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