FTIR发射-透射光谱法测量炭粒和CO_2的温度  

Temperature Measurement for Char and CO_2 by FTIR Emission-transmission Spectroscopy

作　　者：赵国锋[1] 于娟[1] 章明川[1] 

机构地区：[1]上海交通大学能源系,上海200240

出　　处：《锅炉技术》2003年第2期5-8,共4页Boiler Technology

基　　金：国家重点基础研究规划项目 (G19990 2 2 2 0 9);国家自然科学基金项目 ( 5 0 0 760 2 5 );高校博士点基金 ( 2 0 0 0 0 2 480 6)资助

摘　　要：理论分析表明 ,样品光学薄、颗粒等温、满足独立单次散射条件是应用FTIR发射 -透射测量技术所必须满足的。在改进的FTIR和自制的微量给粉燃烧实验装置上 ,对煤粉火焰进行了FTIR发射 -透射测量。对光谱处理后得出的炭粒和CO2 气体的温度 ,显示出该技术和实验台在温度测量方面的较好的适用性。对于气体温度 ,研究表明可以用通过CO2 峰值的黑体理论曲线来简单估计。A class of situations, i.e., optically thin, isothermal and monodispersive samples, is derived by the theoretical analysis and must be satisfied in employing the technique of FTIR emission and transmission. Measurements for pulverized coal flame were performed by using a FTIR spectrometer and a combustion reactor. The particle temperatures and CO 2 gas temperatures obtained from the spectra show the applicability of the technique and the experimental equipment. It also shows that gas temperature can be roughly evaluated by fitting a blackbody to the CO 2 amplitude in the normalized radiance.

关 键 词：傅立叶变换红外光谱 发射光谱 透射光谱 红外 温度 颗粒 

分 类 号：TK16[动力工程及工程热物理—热能工程]