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Author
Barondes, C. D. | Bjorn, e. B. | Cooper, K. E. H. | Hopun, J. E. | Manda, R. E.
Title
Design Tool for the Evaluation of Replacements for Halon in Aircraft Dry Bay Fire Suppression Systems.
Coporate
Air Force Institute of Technology, Wright-Patterson AFB, OH
Report
AFIT/GSE/ENY/92-D-02
December 1992
299 p.
Distribution
AUTHORIZED TO U.S. GOVERNMENT AGENCIES ONLY
Keywords
halons | evaluation | fire suppression
Identifiers
high explosive incendiary; aircraft vulnerability; aircraft fuel system vulnerability; aircraft fuel systems
Abstract
Halon gas is currently used in aircraft dry bay fire suppression systems. Since halons deplete the stratospheric ozone layer, the United States Air Force is committed to developing an airborne fire suppression system which does not use halon. This report describes the Design Tool for the Evaluation of Replacements for Halon in Aircraft Dry Bay Fire Suppression Systems (DTEFS). DTEFS simulates a fire suppression scenario based on the dry bay test fixture used by Wright Laboratory. The simulation includes firing a high explosive incendiary (HEI), fragmentation of the HEI, fuel spillage and ignition, fire propagation, suppression system activation, and suppression system effectiveness. Output of the design tool includes a fragmentation pattern, a dry bay temperature profile, fire status, time of fire suppression, and amount of suppression agent required to extinguish the fire. DTEFS' flexible design readily permits evaluation of fire suppression system effectiveness for different HEIs, different types of fuel, and different suppression agents.