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Author
Markstein, G. H.
Title
Radiative Energy Transfer From Turbulent Diffusion Flames. Technical Report.
Coporate
Factory Mutual Research Corp., Norwood, MA
Sponsor
National Science Foundation, Washington, DC
Report
Serial No. 22361-2, December 1975, 42 p.
Contract
GI-34743X
Book or Conf
ASME-AIChE National Heat Transfer Conference, August 1975, San Francisco, CA, 1975
Keywords
radiative heat transfer | flame spread | burning rate | polymethyl methacrylate | plastics
Abstract
The importance of radiative energy transfer in fire has been recognized for some time. Recent work at Factory Mutual Research Corporation on flame spread and steady burning of vertical polymethyl methacrylate slabs, as well as on burning of various plastics in pool-burning configuration, has further demonstrted the dominant influence of radiative transfer on flame-spread and burning rates. Quantitative information on fire radiation is, therefore, indispensable for predicting fire growth and spread rates. The present study forms part of a continuing effort with the long-range objective to provide reliable quantitative formulations of fire radiation. It extends a previously developed flame array method to measurements on gaseous-fuel turbulent diffusion flames, using a considerable scaled-up version of the experimental arrangement employed in the earlier work. The study also includes some measurements of total radiative power of single turbulent flames and a preliminary discussion of scaling of radiative characteristics with fuel flow rate. The important subject of scaling has been further investigated in amore recent investigation that will be published in a future Technical Report. The present work has been presented at the ASME-AIChE National Heat Transfer Conference, San Francisco, August 1975.