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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2021, Vol. 42 ›› Issue (3): 124182-124182.doi: 10.7527/S1000-6893.2020.24182

• Fluid Mechanics and Flight Mechanics • Previous Articles     Next Articles

Light-off characteristics of oxygen-consuming inerting reactor

FENG Shiyu1, REN Tong1, XIE Huihui2, PENG Xiaotian1, WANG Chenchen3, WANG Yangyang3, PAN Jun3   

  1. 1. Key Laboratory of Aircraft Environmental Control and Life Support, MIIT, College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
    2. AVIC Jiangxi Hongdu Aviation Industry Group Corporation Limited, Nanchang 330024, China;
    3. Aviation Key Laboratory of Science and Technology on Aero-Electromechanical System Integration, Nanjing Engineering Institute of Aircraft Systems, Aviation Industry Corporation of China, Nanjing 211106, China
  • Received:2020-05-05 Revised:2020-06-16 Published:2020-06-24
  • Supported by:
    Joint Research Funds of National Natural Science Foundation of China and Civil Aviation Administration of China(U1933121); the Fundamental Research Funds for the Central Universities; Postgraduate Research & Practice Innovation Program of Jiangsu Province(KYCX19_0198);Priority Academic Program Development of Jiangsu Higher Education Institutions

Abstract: A two-dimensional quasi-homogeneous reactor model of porous media coupled with chemical reactions via the CFD method is established. The operating range and performance of the reactor under different operating conditions are studied using this model. Taking RP-3 fuel as the research object, using a single temperature model of porous media in Fluent 17.0 software, we add the solid phase energy equation through UDS (User Defined Scalar), and add the chemical reaction heat to the solid phase energy equation through the source term. The effect of key parameters on the ignition process of the reactor and the temperature change of the reactor catalytic bed during the ignition process are simulated. The results show that the temperature of the catalytic bed is uneven during the ignition process of the reactor; the increase of the mole fraction of RP-3 can considerably reduce both the ignition time and the ignition temperature; an appropriate gas velocity exists to enable fast reactor light-off.

Key words: catalytic combustion, reactor, fuel tanks, inerting systems, RP-3 aviation kerosene

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