Two-Dimensional Temperature Measurement Of Premixed Ch4/Air Laminar Flame Based On A Wavelength-Integrated Thin-Filament Pyrometry

Based on the Planck formula, this paper uses a color CMOS high-speed camera to image multiple beta-SiC filaments which were placed in the laminar flame of a Bunsen burner fueled with premixed CH4/Air. This paper calculated the filament temperature by establishing the relationship between the image pixel value and the integral intensity of filament radiation and then converted the filament temperature into the flame temperature. The wavelength-integrated filament pyrometer method was developed during this process, and the temperature profiles in the two-dimensional Bunsen burner methane flame were measured and reconstructed.