Abstract:
In the last few decades, many researchers have been studied in the field of premixed
flame within porous media, due to its clean and highly efficient. In a porous burner, the solid
matrix re-circulates heat from the post-flame to the pre-flame zone through solid-to-solid radiation
and conduction leading to excess enthalpy flames. These results in burning velocities are
higher than those for a free flame, extended lean flammability limits, and high radiant output
with low emissions of pollutants such as NO and CO. This paper reviews the processes associating
with combustion within porous media, and describes related experimental and modeling
study. The properties of porous materials, heat re-circulating combustion, internal heat recirculation
in porous burner, the burner performance and conclusions.