- Author
- Bard, S. | Pagni, P. J.
- Title
- Spatial Variation of Soot Volume Fractions in Pool Fire Diffusion Flames.
- Coporate
- California Univ., Berkeley
- Sponsor
- National Bureau of Standards, Gaithersburg, MD
- Contract
- NBS-GRANT-60NAND5D0552
- Book or Conf
- International Association for Fire Safety Science. Fire Safety Science. Proceedings. 1st International Symposium. October 7-11, 1985, Hemisphere Publishing Corp., NY, Gaithersburg, MD, Grant, C. E.; Pagni, P. J., Editors, 361-369 p., 1986
- Keywords
- pool fires
- Abstract
- Measurements are reported of the line of sight averaged soot volume fraction as a function of height within pool fire flames fueled by polystyrene (PS) and polymethylmethacrylate (PMMA). No-lip pools with diameters of 7.5 cm and 15 cm were examined and compared with Markstein's results at 31 cm and 73 cm. The multi-wavelength laser transmission technique used has been previously described. PS and PMMS represent two distinct cases. For the optically thick PS the soot volume fraction, fv, appears to be independent of fuel scale at ~ 3.3 ppm. For the optically thin PMMA, fv increases substantially with fuel scale from ~ 0.2 to ~ 0.7 ppm. For both fuels, fv decreases only slightly with height and is well approximated as uniform throughout the flame.