Experimental comparison between aircraft fuel tank inerting processes using NEA and MIG

查看全文 作　　者：Lei [1,2]SHAO;Weihua [1]LIU;Chaoyue [1]LI;Shiyu [1]FENG;Chenchen [1]WANG;Jun [3]PAN

机构地区：[1]Key Laboratory of Aircraft Environment Control and Life Support of MIIT, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;[2]College of Aeronautics, Chongqing Jiaotong University, Chongqing 400074, China;[3]Jiangsu Province Key Laboratory of Aerospace Power System, Nanjing Engineering Institute of Aircraft Systems, Nanjing 210016, China

出　　处：《Chinese Journal of Aeronautics》索引2018年第31卷第7期,共10页

基　　金：supported by Funding of Jiangsu Innovation Program for Graduate Education of China (No.KYLX15_0231);Postgraduate Research & Practice Innovation Program of Jiangsu Province of China (No.KYCX17_0279);the Fundamental Research Funds for the Central Universities,Aviation Industry Corporation of China Technology Innovation Fund for Fundamental Research (No.2014D60931R);Funding of Ministry of Industry and Information Technology for Civil Aircraft 摘　　要：Fuel tank inerting technologies are able to reduce the fire risk by injection of inert gas into the ullage or fuel, the former called ullage washing and the latter fuel scrubbing. The Green On-Board Inert Gas Generation System(GOBIGGS) is a novel technology based on flameless catalytic combustion, and owning to its simple structure and high inerting efficiency, it has received a lot of attentions. The inert gas in the GOBIGGS is mainly comprised of CO_2, N_2, and O_2(hereinafter, Mixed Inert Gas(MIG)), while that in the On-Board Inert Gas Generation System(OBIGGS), which is one of the most widely used fuel tank inerting technologies, is NitrogenEnriched Air(NEA). The solubility of CO_2 is nearly 20 times higher than that of N_2 in jet fuels,so the inerting capability and performance are definitely disparate if the inert gas is selected as NEA or MIG. An inerting test bench was constructed to compare the inerting capabilities between NEA and MIG. Experimental results reveal that, if ullage washing is adopted, the variations of oxygen concentrations on the ullage and in the fuel are nearly identical no matter the inert gas is NEA or MIG. However, the ullage and dissolved oxygen concentrations of MIG scrubbing are always higher than those of NEA scrubbing. 关键词：飞机燃料 NEA 试验性坦克产生系统 CO2 催化燃烧喷气燃料

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Experimental comparison between aircraft fuel tank inerting processes using NEA and MIG

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