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Author
Hochgreb, S. | Hsin, Y. E. | Linteris, G. T.
Title
Laminar Flame Speeds of CF₃H-Propane-Air Mixtures at Elevated Pressures.
Coporate
Massachusetts Institute of Technology, Cambridge National Institute of Standards and Technology, Gaithersburg, MD
Report
NISTIR 5499, September 1994,
Book or Conf
National Institute of Standards and Technology. Annual Conference on Fire Research: BOOK OF ABSTRACTS. October 17-20, 1994, Gaithersburg, MD, 19-20 p., 1994
Keywords
fire research | laminar flames | flame speed | propane | pressure
Abstract
A fundamental property of interest in characterizing the effectiveness of fire suppressants is the effect of addition of inhibitors on the laminar flame speed of a fuel as a function of pressure and temperature of the unburned mixture. The effects of CF₃H and C₂F₆ on the laminar flame speed of mixtures of gaseous fuels and air are currently being investigated in a laminar combustion bomb (a constant volume combustion device amenable to flame speed measurements at elevated and reduced pressures). Preliminary results for CF₃H-propane-air mixtures are reported here. The data show little reduction in the burning rate at elevated pressures for addition of 1% CF₃H but about 25% reduction in the burning rate for 2% CF₃H.