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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2023, Vol. 44 ›› Issue (10): 127545-127545.doi: 10.7527/S1000-6893.2022.27545

• Fluid Mechanics and Flight Mechanics • Previous Articles    

Design simulation of thermal management system for hypersonic aircraft based on liquid natural gas

Chaoqian CHENG1,5, Peng YU6, Zongqi XIE6, Yang LI3,7(), Zongxia JIAO1,2,4   

  1. 1.School of Automation Science and Electrical Engineering,Beihang University,Beijing  100191,China
    2.Ningbo Institute of Technology,Beihang University,Ningbo  315800,China
    3.Research Institute for Frontier Science,Beihang University,Beijing  100191,China
    4.Science and Technology on Aircraft Control Laboratory,Beihang University,Beijing  100191,China
    5.Key Laboratory of Advanced Aircraft Utility Systems,Ministry of Industry and Information Technology,Beihang University,Beijing  100191,China
    6.Beijing Aerospace Technology Institute,Beijing  100074,China
    7.Tianmushan Laboratory,Hangzhou  311115,China
  • Received:2022-05-31 Revised:2022-06-29 Accepted:2022-09-15 Online:2022-10-08 Published:2022-09-30
  • Contact: Yang LI E-mail:leeyoung303@buaa.edu.cn
  • Supported by:
    National Natural Science Foundation of China(52272409);National Key Laboratory Foundation of China(JSY6142219202105)

Abstract:

To solve the overheated problem of the airborne Thermal Management System (TMS) on hypersonic aircraft.In this paper, when the hypersonic aircraft flies at high speed for a long time, designed a new type of TMS architecture by introducing expendable heat sink Liquid Natural Gas (LNG). The maximum cruise speed of the flight profile is set to Mach number 7, the dynamic simulation of the TMS is carried out, analyzed the temperature of equipment, fuselage structure and engine oil when the hypersonic aircraft take off at different temperatures, compared the performance of TMS with and without LNG. The results show that the TMS equipped with LNG is feasible and the performance of TMS has been improved. If the TMS only use fuel and ram air as heat sink, not equipped with LNG, it will be overheated for a long time because the fuel heat sink is insufficient when hypersonic aircraft flies at high speed for a long time or return. After equipped with LNG, the overheated problem was solved. Meanwhile analyzed the consumption of LNG and the cost of aircraft volume and weight under different take-off temperatures. The empirical formula for LNG and take-off temperature are obtained by data fitting, It can provide a reference for the design of hypersonic aircraft’s TMS.

Key words: hypersonic aircraft, LNG, thermal management system, temperature control performance, compensation assessment

CLC Number: