Experimental Study on Flame Stability and Thermal Performance of an n-Heptane-Fueled Microscale Combustor

Development of planar meso­scale combustor with double narrow slit flame holder and various aspect ratios for micropower generator

“…It has been observed that porous media combustion of premixed H 2 -air in a planar micro-combustor indicate that the wall temperature increases with increasing mixture rate, and higher emitter efficiency was achieved for mixtures with f≈0.8 [7]. It is also pointed out that a micro-diffusion flame of n-heptane with the porous media in the tube, the flame could be stabilized close to the porous media and it effectively increase flame stability at low Reynolds number and hence more radiation heat is transferred through the outer tube at high Reynold number [8]. Another research used porous media and swirling combustor with a heat-regeneration reverse tube indicate that could improve the intensity and uniformity of the combustion chamber (emitter) illumination and could increase the surface temperature of the chamber wall [9].…”

Towards the Development of Miniature Scale Liquid Fuel Combustors for Power Generation Application—A Review

“…Additionally, a re-circulation tube can greatly increase the amount of heat recovered from combustion. Junwei et al [61] incorporated a porous medium to disperse droplets on an n-heptane-fuelled micro combustor with an outer tube to recirculate exhaust heat. Heat re-circulation was found to increase wall temperature as well as residence time, which ultimately lead to stable micro diffusion flames.…”