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Author
Muhs, D.
Title
Design and Fabrication of a Fuel Tank Generic Nitrogen Inerting Unit. Final Technical Report. July 1981 - December 1982.
Coporate
Clifton Precision Instruments 7 Life Support Div., Davenport, IA
Report
USAAVRADCOM-TR83-D19, July 1983, 35 p.
Distribution
Available from National Technical Information Service. Limited to US Government agencies only; proprietary information; July 1983. Other requests for this document must be referred to the Applied Technology Laboratory, U.S. Army Research and Technology Laboratories (AVRADCOM) Fort Eustis, Virginia 23604.
Contract
DAAK51-81-C-0023
Keywords
molecular sieve | fuel tanks | aircraft | nitrogen
Abstract
Nitrogen inerting has been previously identified as a solution to aircraft fuel tank protection against fire and explosion. This report covers the design and development of a system for inert gas production by air separation. A goal of the program was the design of a "generic" unit which could be used on several Army aircraft without modification. The approach was to use pressure swing adsorption using synthetic zerolite (molecular sieve) to produce gas with a maximum oxygen content of 9%, in accordance with an Army draft Critical Item Development Specification (CIDS). The design was completed and three prototype units manufactured and tested which meet the design criteria of the CIDS and of a Hughes Helicopters, Inc., specification for a nitrogen inerting unit for the AH-64A helicopter. As a result of the above effort, the design concept was selected for the AH-64A helicopters, for qualification testing and for Lot I production of 12 helicopters.