OBIGGS for Fuel System Water Management - Proof of Concept 2011-01-2793
Fuel on-board dehydration during flight technologies has been modeled and experimentally studied on a laboratory testing setup in normal specific gas flow rates range of 0.0002-0.0010 sec-₁. Natural air evolution, ullage blowing and fuel sparging with dry inert gas have been studied. It has been shown that natural air evolution during aircraft climb provides a significant, substantial, but insufficient dehydration of fuel up to 20% relative. Ullage blowing during cruise leads to a constant, but a slow dehydration of fuel with sufficient column height concentration gradient. Dry inert gas sparging held after the end of the natural air evolution or simultaneously with natural air evolution provides rapid fuel dehydration to the maximum possible values. It potentially may eliminate water release and deposition in fuel to -50°C. It has been found that for proper dehydration, necessary and sufficient volume of dry inert gas to volume of fuel ratio is about 1.
Citation: Merkulov, O., Zherebtsov, V., Peganova, M., Kitanin, E. et al., "OBIGGS for Fuel System Water Management - Proof of Concept," SAE Int. J. Aerosp. 4(2):1465-1474, 2011, https://doi.org/10.4271/2011-01-2793. Download Citation
Author(s):
Oleg Merkulov, Vladimir Zherebtsov, Marina Peganova, Eduard Kitanin, Joseph Kah-Wah Lam, Andrey Sartori
Affiliated:
RSC - Applied Chemistry, St. Petersburg State Tech. University, Airbus, EADS Innovation Works RTO
Pages: 10
Event:
Aerospace Technology Conference and Exposition
ISSN:
1946-3855
e-ISSN:
1946-3901
Also in:
SAE International Journal of Aerospace-V120-1, SAE International Journal of Aerospace-V120-1EJ
Related Topics:
Technical review
Fuel systems
Gases
Aircraft
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