Energy and spectral characteristics of radiation during filtration combustion of natural gas

Energy and spectral characteristics of infrared radiation of a porous ceramic metal burner fabricated by the self-propagating high-temperature synthesis technology are studied. Radiant energy release of the burner in the regime of filtration combustion of natural gas is demonstrated to be greater than a similar parameter of plume combustion up to two times and to be determined by the intensity of radiation of the ceramic metal open surface and gaseous products of combustion. More than 70% of the radiant flux energy are concentrated in the wavelength range from 3 to 11 $\mu$m. The maximum density of radiation reaches 0.31 MW/m$^2$ for the burner power density of 1.32 MW/m$^2$.