VIBRATIONAL CARS THERMOMETRY IN SOOTY FLAMES - QUANTITATIVE-EVALUATION OF C2 ABSORPTION INTERFERENCE

被引：50

作者：

BENGTSSON, PE

ALDEN, M

KROLL, S

NILSSON, D

机构：

[1] Combustion Centre, Lund Institute of Technology

来源：

COMBUSTION AND FLAME | 1990年 / 82卷 / 02期

关键词：

D O I：

10.1016/0010-2180(90)90098-C

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The application of nitrogen vibrational CARS thermometry to sooty, premixed, atmospheric pressure flames has been investigated using a Nd:YAG laser based system. It was found that laser-produced C2 radicals strongly absorb part of the fundamental band peak in the CARS spectrum. This was the most severe interference to the CARS signal. A quantitative investigation of temperature errors caused by the C2 absorption effect is presented. The correlation between the absorption interference and the soot volume fraction was examined for different flame conditions. Also, the increase of the nonresonant susceptibility in sooty flame regions is clearly illustrated and its effect on thev evaluated temperature is quantitatively determined. The single-shot temperature standard deviation has also been investigated in flames with different soot loadings. Finally, other interference effects to the CARS signals in sooty flames are described and discussed. © 1990.

引用

页码：199 / 210

页数：12

共 45 条

[1] ROTATIONAL CARS GENERATION THROUGH A MULTIPLE 4-COLOR INTERACTION [J].