Stereoscopic pyrometer for char combustion characterization

For many pulverized fuels, especially coal and biomass, char combustion is the time determining step. Based on intensified ICCD cameras, a novel setup has been developed to study pulverized fuel combustion, mainly in a laminar flow reactor. For char burning characterization, the typical measurement parameters are particle temperature, size, and velocity. The working principle of the camera setup is introduced and its capabilities are discussed by examination of coal particle combustion under CO2-enriched, so-called oxy-fuel atmospheres with varying O-2 content. (C) 2015 Optical Society of America