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所属单位：航空学院
发表刊物：CHINESE JOURNAL OF AERONAUTICS
关键字：Dissolved oxygen Experiment Fuel tanks Inert gases Mixed Inert Gas (MIG) Nitrogen-Enriched Air (NEA) Oxygen
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 CO2, 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 Nitrogen Enriched Air (NEA). The solubility of CO2 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. (C) 2018 Chinese Society of Aeronautics and Astronautics. Production and hosting by Elsevier Ltd.
ISSN号：1000-9361
是否译文：否
发表时间：2018-07-01
合写作者：Shao, Lei,Li, Chaoyue,冯诗愚,Wang, Chenchen,Pan, Jun
通讯作者：刘卫华,冯诗愚