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Author
Heyworth, S. M.
Title
Generalized Data Correlations for Extinguishment Times and Acid Concentrations in Fire Tests With Fluorinated Suppression Agents.
Coporate
Worcester Polytechnic Inst., MA
Report
Thesis, May 29, 1996, 268 p.
Keywords
fire suppression | extinguishment times | fire tests | halon alternatives | methodology | equations
Identifiers
halon replacement agent testing
Abstract
Data obtained in recent laboratory-scale, intermediate-scale, and large-scale fire tests with fluorinated gaseous suppression agents have been collected and used to generate generalized data correlations for extinguishment time and hydrofluoric acid concentration. The test series used for the database are: (1) The NASA/HAI tests in a 1.2 m³ enclosure; (2) The NASA/HAI tests in a 29 m³ enclosure; (3) The Naval Research Laboatory (NRL) tests in their 56 m³ enclosure; (4) The Coast Guard tests in the 560 m³ simulated engine room aboard the Mayo Lykes, and (5) The NRLtests in the 841 m³ simulated engine room aboard the Ex-USS Shadwell. The fires inlcuded a multitude of pool fires and spray fires and a few cable fires and wood crib fires. In several tests there were multiple fires. The suppression agents tested were FM-200 (C₃F₇H), FE-13 (CF₃H), CEA-410 (C₄F₁₀), and Halon 1301 (CF₃Br). The dependent and independent variables were non-dimensionalized to generalize the various correlations attempted. Both two-dimensional and three0dimensional curve fits were obtained for the non-dimensionalized variables using statistical and plotting software.