文献类型：期刊文献

英文题名：Development of a micro-infrared thermometry method for surface temperature distribution and variation of millimeter particle during high-temperature reaction

作者：Zhang, Haigang[1,3];Shen, Zhongjie[1,3];Xu, Jianliang[1,3];Liang, Qinfeng[1,3];Dai, Zhenghua[1,2,3];Gong, Jianhong[4];Liu, Haifeng[1,3]

机构：[1]East China Univ Sci & Technol, Natl Energy Coal Gasificat Technol Res & Dev Ctr, POB 272, Shanghai 200237, Peoples R China;[2]Xinjiang Univ, Sch Chem Engn & Technol, Urumqi 830046, Peoples R China;[3]East China Univ Sci & Technol, Shanghai Engn Res Ctr Coal Gasificat, POB 272, Shanghai 200237, Peoples R China;[4]Sinopec Res Inst Petr Proc, Beijing 100083, Peoples R China

年份：2024

卷号：156

外文期刊名：INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER

收录：;EI(收录号：20242516263196);WOS:【SCI-EXPANDED(收录号:WOS:001255838500001)】；

基金：Acknowledgments This study is supported by the National Natural Science Foundation of China (22378130) , National Key R & D Program of Chinar (2022YFC3902502-04) , Key R & D Program of Xinjiang Uygur Autono-mous Region (2022B03026-1) , the Fundamental Research Funds of the Central Universities (2022ZFJH004) .

语种：英文

外文关键词：Single particle; Infrared thermometry; High -temperature reaction; Surface temperature distribution

摘要：Temperature strongly affects the conversion efficiency, local reactivity, and particle stabilization of the reactions, particularly at high temperature. This study integrated infrared thermography with a high -temperature hot stage reactor to develop a methodology of continuous temperature measurement for a single particle reaction at high temperatures. The external optical transmission transmittance and temperature field core were corrected, and the relationship between the measured temperature ( T r ) and true temperature ( T 0 ) was obtained by adjusting the sample emissivity. Sample temperature with known emissivity at elevated temperature was measured with 1% deviation. The instantaneous temperature measurement for the gasification process was carried out and the overall emissivities of coal particles were corrected. Temperature distribution and variation on the coal particle surface during the gasification process were further obtained and consistent with the previous research results. The proposed online temperature measurement method provides a new approach for gaining insights into particle reaction states.