Abstract
Determination of temperatures associated with room fires provides a means of assessing an important aspect of fire hazard: the likelihood of the occurrence of flashover. Layer temperatures in excess of 600°C have been associated with the occurrence of flashover. A data correlation has previously been presented to estimate layer temperatures for fires burning in the center of rooms. For fires in corners and along walls, restricted entrainment results in higher layer temperatures than predicted by the previous correlation. Modification factors for the previous correlation are developed to extend its applicability to wall and corner burning geometries. The present analysis suggests that a fire in a corner may cause flashover with only half the heat release rate necessary for a fire burning in the center of a room.
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McCaffrey, B. J., Quintiere, J. G., and Harkleroad, M. F., “Estimating Room Temperatures and the Likelihood of Flashover Using Fire Test Data Correlations,”Fire Technology, Vol. 17, No. 2, 1981, pp. 98–119.
Alpert, R. L., and Ward, E. J., “Evaluating Unsprinklered Fire Hazards,” FMRC Technical Report No. 01836.20, Factory Mutual Research Corporation, Norwood, MA. 1982.
Zukoski, E. E., Kubota, T., and Cetegen, B., “Entrainment in Fire Plumes,”Fire Safety Journal, Vol. 3, No. 2, 1981, pp. 107–122.
Morton, B. L., Taylor, G. I., and Turner, J. S., “Turbulent Gravitational Convection from Maintained and Instantaneous Sources,”Proc. R. Soc. London, Ser. A, Vol. 234, 1956, pp. 1–23.
Rockett, J. A., “Fire Induced Gas Flow in an Enclosure,”Combustion Science and Technology, Vol. 12, 1976, p. 165.
Prahl, J., and Emmons, H. W., “Fire Induced Flow Through an Opening,”Combustion and Flame, Vol. 25, 1975, pp. 369–385.
Steckler, K. D., Baum, H. R., and Quintiere, J. G., “Fire Induced Flows through Room Openings — Flow Coefficients,” NBSIR 83-2801, National Bureau of Standards, Washington, DC, 1984.
Heskestad, G., “Engineering Relations for Fire Plumes,” SFPE Technology Report 82-8, Society of Fire Protection Engineers, Boston, MA, 1982.
McCaffrey, B. J., “Momentum Implications for Buoyant Diffusion Flames,”Combustion and Flame, Vol. 52, 1983, pp. 149–167.
Quintiere, J. G., “The Growth of Fire in Building Compartments,” inFire Standards and Safety, ASTM STP 614, A. F. Robertson, Ed., American Society for Testing and Materials, Philadelphia, 1977, pp. 131–167.
Babrauskas, V., “Estimating Room Flashover Potential,”Fire Technology, Vol. 16, 1980, pp. 94–103, 112.
“Standard Guide for Room Fire Experiments,” ASTM Standard E603-77,Annual Book of ASTM Standards, Vol. 04.07, American Society for Testing and Materials, Philadelphia, 1985.
Fisher, F. L., Mowrer, F. W., and Williamson, R. B., “A Room Fire Screening Test Procedure,”Fire Technology, Vol. 19, 1983, pp. 238–250.
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Reference: Frederick Mowrer and Robert Williamson, “Estimating Room Temperatures from Fires along Walls and in Corners,”Fire Technology, Vol. 23, May 1987, pp. 133–145.
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Mowrer, F.W., Williamson, R.B. Estimating room temperatures from fires along walls and in corners. Fire Technol 23, 133–145 (1987). https://doi.org/10.1007/BF01040428
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DOI: https://doi.org/10.1007/BF01040428