β Scribed by R.L. Vander Wal; Z. Zhou; M.Y. Choi
No coin nor oath required. For personal study only.
Absolute calibration of laser-induced incandescence (LII) is demonstrated via comparison of LII signal intensities with gravimetrically determined soot volume fractions. This calibration technique does not rely upon calculated or measured optical characteristics of soot. The variation of the LII signal with gravimetricaUy measured soot volume fractions ranging from 0.078 to 1.1 ppm established the linearly of the calibration. With the high spatial and temporal resolution capabilities of laser-induced incandescence (LII), the spatial and temporal fluctuations of the soot field within a gravimetric chimney were characterized. Radial uniformity of the soot volume fraction, fL., was demonstrated with sufficient averaging of the single laser-shot LII images of the soot field thus confirming the validity of the calibration method for imaging applications. As illustration, instantaneous soot volume fractions within a Re = 5000 ethylene/air diffusion flame measured via planar LII were established quantitatively with this calibration.
π SIMILAR VOLUMES
In Japanese) Compounds with sulfonic acid groups and carboxylic acid groups form the title additives, which are used when preparing aqueous slurries containing 5-60 wt% ultrafine carbonaceous particles (51 hm). Analysis of thermal radiation In coal-fired furnaces