Title of Paper:Experimental Comparison of Fuel Scrubbing Inerting Process Using Nitrogen and Carbon Dioxide of Aircraft Fuel Tanks

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Affiliation of Author(s):航空宇航学院

Journal:FIRE TECHNOLOGY

Key Words:Inerting Deoxygenation Fire Fuel Fuel scrubbing Nitrogen Carbon dioxide

Abstract:Fuel scrubbing technology could be used for fuel tank inerting and fuel deoxygenation. Both N-2 and CO2 are perfect inert gases, but the solubility of CO2 is nearly 20 times higher than that of N-2 in jet fuels, so the scrubbing inerting process varies with the selection of N-2 or CO2. A scrubbing test bench is constructed, and the variation of oxygen concentration on ullage or in the fuel is measured under various flow rates, fuel loads and initial oxygen concentrations on ullage. Experimental results reveal that the ullage and dissolved oxygen concentrations of CO2 scrubbing are always higher than that of N-2 scrubbing. The inerting time of CO2 scrubbing of a 30%, 50% and 70% fuel load is approximately 1.42, 1.7 and 2.75 times that of N-2 scrubbing, respectively. The scrubbing test under 5%, 9% and 14% initial ullage oxygen concentration revels a peak in ullage oxygen concentration of 7.23% and 9.97% for N-2 scrubbing and that of 12.63%, 13.4% and 15.4% for CO2 scrubbing, respectively.

Volume:54

Issue:2

Page Number:379-394

ISSN No.:0015-2684

Translation or Not:no

Date of Publication:2018-03-01

Included Journals:SCIE

Correspondence Author:TealC