Accession Number : ADA083610
Title : Development of Army Fire-Resistant Diesel Fuel.
Descriptive Note : Interim rept. 1 Oct 77-31 Dec 79,
Corporate Author : SOUTHWEST RESEARCH INST SAN ANTONIO TX ARMY FUELS AND LUBRICANTS RESEARCH LAB
Personal Author(s) : Weatherford,W D , Jr ; Fodor,G E ; Naegeli,D W ; Owens,E C ; Wright,B R
Report Date : Dec 1979
Pagination or Media Count : 132
Abstract : Six different approaches to achieving reduced fuel fire vulnerability investigated by the U.S. Army have been described. The last approach was selected for developing fire-resistant fuels (FRF) for diesel-powered ground equipment. The selected approach involves the inclusion of emulsified water in surfactant-stabilized diesel fuel. An alternative approach, using half as much water and trace amounts of antimist agent in surfactant-stabilized diesel fuel, also has been investigated. Screening studies followed by laboratory, bench-scale, and full-scale experimental investigations have led to the development of clear-to-hazy fire-resistant microemulsions of 10 percent volume water and 6 percent volume surfactant (FRF-A) and alternatively, of 5 percent volume water and 3 percent volume surfactant with 0.2 wt% antimist agent (FRF-B), both formulated in DF-2 diesel fuel. The surfactant comprises a mixture of reaction products formed from two moles of diethanolamine and mole of oleic acid, or 1.009 moles of oleic acid in a modified version of the surfactant. Flammability evaluations demonstrate that these aqueous microemulsions yield diminished mist flammability while either eliminating pool burning or providing rapid self-extinguishment of pool fires, even at fuel temperatures more than 10 degrees C above the base fuel flash point. Bench-scale ballistic tests, using 20-mm high-explosive incendiary tracer projectiles, and full-scale ballistic tests, using 3.2-inch precision shaped charges, confirm and correlate with the flammability data.
Descriptors : *RESEARCH MANAGEMENT , *DIESEL FUELS , *FIRE RESISTANCE , *FIRE SAFETY , TEMPERATURE , STABILITY , EXPERIMENTAL DATA , REACTION KINETICS , WATER , TEST METHODS , AMINES , ADDITIVES , SHAPED CHARGES , FLASH POINT , ARMY , BALLISTICS , FLAMMABILITY , EMULSIONS , OLEIC ACID
Subject Categories : Fuels
Distribution Statement : APPROVED FOR PUBLIC RELEASE