Research on Fire-Resistant Diesel Fuel Flammability Mitigation Mechanisms

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Abstract:

The development of aqueous fire-resistant diesel fuel FRF microemulsions has been reported previously. Flammability and ballistic tests reveal diminished mist flammability, and such tests demonstrate rapid self- extinguishment of pool fires even at temperatures above the base fuel flash point. A basic study has been conducted to develop an improved understanding of the mechanisms by which such self-extinction occurs. An ignition-limits apparatus was developed, utilizing an evacuatable autoclave at one atmosphere. Measurements made with diesel fuel vapor in air, diluted with various amounts of water vapor, established that such mixtures containing more than about 24 mole water vapor cannot burn. Vapor pressure measurements, made in a modification of the same apparatus, confirmed that FRF systems containing 10 vol water and 6 vol surfactant are blanketed by equilibrium vapors containing at least 24 mole water for liquid temperatures greater than about 70 C. The flash points of diesel fuel FRF blends containing 10 water are about the same as those of the base fuel when its flash point is less than about 70 C. When the base fuel flash point exceeds 70 C, no flash point is detectable for the FRF.

Author(s):
Weatherford, Jr., W. D. ; Naegeli, David W.
Author Organization(s):
SOUTHWEST RESEARCH INST SAN ANTONIO TX BELVOIR FUELS AND LUBRICANTS RESEARCH FACILITY
Descriptive Note:
Interim rept. 13 May 1980-31 Dec 1982
Pagination:
0057

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFLRL-165
Contract/Grant Number(s):
DAAK70-80-C-0001, DAAK70-82-C-0001
Task Number(s):
FG
Project Number(s):
1T161102AH51
Monitor Series:
MERADCOM
 Subject Terms
Joint Capability Areas:
JCA_1.2.7_Experimentation; JCA_5_Command and Control; JCA_4.2.3_Manage Global Supplier Networks; JCA_4.2_Supply; JCA_1.1.1_Global Force Management; JCA_1.1_Force Management; JCA_1.2.3_Educating; JCA_1.2.5_Lessons Learned; JCA_1_Force Support; JCA_4_Logistics
Modernization Areas:
Space
Communities of Interest:
Weapons Technologies
Descriptor(s):
*RESEARCH MANAGEMENT, *DIESEL FUELS, *FLAMMABILITY, *FIRE RESISTANCE, DIESEL ENGINES, SOLUTIONS(MIXTURES), EXTINGUISHING, MATERIALS, FLASH POINT, SELF OPERATION, ADDITIVES, AMIDES
Field(s)/Group(s):
Combustion and Ignition, Fuels, Reciprocating and Rotating Engines
Keyword(s):
SOAP SURFACTANTS, MICELLAR SOLUTIONS, MITIGATION MECHANISM, MICROEMULSIONS, SELF EXTINGUISHING, PE61102A, WUB57
Report Date:
1982 Dec 01