NIST Time|NIST Home|About NIST|Contact NIST

HomeAll Years:AuthorKeywordTitle2005-2010:AuthorKeywordTitle

Validation of a Turbulent Spray Flame Facility for the Assessment of Halon Alternatives.


pdf icon Validation of a Turbulent Spray Flame Facility for the Assessment of Halon Alternatives. (538 K)
Grosshandler, W. L.; Presser, C.; Lowe, D. L.

Halon Alternatives Technical Working Conference 1993. Proceedings. HOTWC 1993. (Halon Options Technical Working Conference.) University of New Mexico; New Mexico Engineering Research Institute; Center for Global Environmental Technologies; National Association of Fire Equipment Distributors, Inc.; Halon Alternative Research Corp.; Fire Suppression Systems Assoc.; and Hughes Associates, Inc. May 11-13, 1993, Albuquerque, NM, 129-136 pp, 1993.

Sponsor:

Air Force, Wright Patterson AFB, OH

Keywords:

halons; validation; experiments; air velocity; injection; nitrogen; air temperature; halon alternatives

Abstract:

The work discussed in this paper is part of a larger effort at NIST focused on finding an alternative to halon 1301 for application to aircraft engine nacelle and dry bay in-flight fire protection. Alternative chemical compounds are sought which will perform similarly to halon 1301, and whick do not create unacceptable safety, environmental, or systems compatibility problems. A cup burner, an opposed flow diffusion flame, a turbulent spray flame, and a deflagration/detonation tube are being used to rank the relative combustion suppression effectiveness of the following agents: R-32 (CH2F2), R-32/R-125 (CH2F2/CHF2CF3), HFC-227 (C3HF7), R-22 (CHF2Cl), HFC-134a (CH2FCF3), FC-116 (C2F6), HCFC-124 (CHFClCF3), R-125 (CHF2CF3), FC-218 (C3F8), FC-31-10 (C4F10), and FC-318 (cyclo-C4F8). Table 1 lists the fuels and agents to be evaluated and the experimental variables for each configuration.