Diffusion Combustion Characteristics of H_2/Air in the Micro Porous Media Combustor

摘要

In order to improve thermal-to-electric energy conversion efficiency of the micro gas turbine power generation system, a novel micro porous media combustor is designed and experimental investigation on the H_2/air diffusion combustion is performed to obtain its combustion characteristics. High efficiency diffusion combustion of H_2/air can be stabilized in the very wide operating range, especially at higher excess air ratio. Exhaust gas temperature is markedly improved and meanwhile heat loss ratio is evidently decreased. Moreover, in the certain operating ranges, the greater the combustion thermal power and excess air ratio, the smaller heat loss of the micro combustor will be. The micro porous media combustor should be a preferred micro combustor for developing the micro gas turbine power generation system.