Abstracts

Topic: Y. R. Sivathanu and J. P. Gore (1993),

“Total Radiative Heat Loss in Jet Flames from Single Point Radiative Flux Measurements,”

Combust. Flame, vol. 94, pp. 265-270.

A method for estimating total radiant output of turbulent jet flames based on the measurement of radiative heat flux at a single location is reported. The radiative flux from a variety of jet flames was measured and plotted in normalized coordinates to establish the feasibility of this approach. In addition, the radiative flux from acetylene-air diffusion flames to representative detector locations, for two different burner geometries and flow conditions, was calculated using the Planck-averaged equation of transfer coupled with a multiray technique. The local temperature and soot volume fractions for the calculations were obtained from emission/absorption measurements. The normalized calculated heat flux for the two flames also collapse with the experimental data. This result shows that scalar property distributions combined with the appropriate view factor for the single location are the basis for the single point technique.