Simultaneous optical measurement of soot volume fraction, temperature, and CO2 in heptane pool fire

Detailed measurements of the temperature, soot volume fraction, and CO 2 have been performed for a10 cm diameter heptane fire. In addition, the concentrations of H 2 O and CO were inferred from generalized state relationships. The heat feedback to the surface was calculated by using a reverse Monte-Carlo method in conjunction with RADCAL. The calculated heat fluxes to the surface with and without gas emission indicate that the contributions from the gaseous combustion products to total radiation are significant for heptane due to its mildly sooting nature. Simultaneous optical measurements using two probes were performed to investigate the importance of temporal correlations on the heat transfer calculations. Measurements made throughout the fire indicate that nonsimultaneous data sets can be used to accurately predict the heat transfer to the fuel surface.

[1]  P. J. Pagni,et al.  Carbon Particulate in Small Pool Fire Flames , 1981 .

[2]  J. Gore,et al.  Mean and Fluctuating Radiation Properties of Nonpremixed Turbulent Carbon Monoxide/Air Flames , 1989 .

[3]  William L. Grosshandler,et al.  The structure and radiation of an ethanol pool fire , 1987 .

[4]  J. Gore,et al.  Coupled Structure and Radiation Analysis of Acetylene/Air Flames , 1992 .

[5]  R. O. Buckius,et al.  Rigorous development for radiation heat transfer in nonhomogeneous absorbing, emitting and scattering media , 1992 .

[6]  Peter R. Solomon,et al.  Tomographic reconstruction of FT-IR emission and transmission spectra in a sooting laminar diffusion flame : species concentrations and temperatures , 1991 .

[7]  Jay P. Gore,et al.  Simultaneous emission absorption measurements in toluene-fueled pool flames: Mean and RMS Properties☆ , 1992 .

[8]  Takashi Kashiwagi,et al.  Radiative heat feedback in a toluene pool fire , 1992 .

[9]  G. H. Markstein.  Measurements on Gaseous-Fuel Pool Fires with a Fiber-optic Absorption Probe , 1984 .

[10]  Jay P. Gore,et al.  Temperature and soot volume fraction statistics in toluene-fired pool fires , 1993 .

[11]  L. L. Carter,et al.  An adjoint Monte Carlo treatment of the equations of radiative transfer for polarized light , 1978 .

[12]  G. Faeth,et al.  Generalized state relationships for scalar properties in nonpremixed hydrocarbon/air flames , 1990 .

[13]  Gerard M. Faeth,et al.  Temperature / soot volume fraction correlations in the fuel-rich region of buoyant turbulent diffusion flames☆ , 1990 .

[14]  Takashi Kashiwagi,et al.  Simultaneous optical measurement of soot volume fraction and temperature in premixed flames , 1994 .

[15]  W. Grosshandler.  Radcal: A Narrow-Band Model for Radiation Calculations in a Combustion Environment , 2018 .

[16]  Holly E. Rushmeier,et al.  Volume rendering of pool fire data , 1995, IEEE Computer Graphics and Applications.

[17]  P. J. Pagni,et al.  Spatial Variation Of Soot Volume Fractions In Pool Fire Diffusion Flames , 1986 .

[18]  J. Gore,et al.  Simultaneous Multiline Emission Absorption Measurements in Optically Thick Turbulent Flames , 1991 .

[19]  A. F. Sarofim,et al.  Optical Constants of Soot and Their Application to Heat-Flux Calculations , 1969 .