文献类型：期刊文献

英文题名：Influence of burner geometry on atomization of coal water slurry in an entrained-flow gasifier

作者：Wu, Xiaoxiang[1];Guo, Qinghua[1];Gong, Yan[1];Liu, Jieyu[1];Luo, Xiang[3];Wu, Tao[3];Yu, Guangsuo[1,2]

机构：[1]East China Univ Sci & Technol, POB 272, Shanghai 200237, Peoples R China;[2]Ningxia Univ, State Key Lab High Efficiency Coal Utilizat & Gre, Yinchuan 750021, Ningxia, Peoples R China;[3]Univ Nottingham Ningbo China, Key Lab Carbonaceous Wastes Proc & Proc Intensifi, Ningbo 315100, Peoples R China

年份：2022

卷号：247

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20213810909706);WOS:【SCI-EXPANDED(收录号:WOS:000703176700013)】；

基金：This work has been supported by the Project of Key Research Plan of Ningxia (2019BCH01001) and the National Natural Science Foundation of China (21878094) . The Zhejiang Provincial Depart-ment of Science and Technology is also acknowledged for this research under its Provincial Key Laboratory Programme (2020E10018) .

语种：英文

外文关键词：Burner geometry; Entrained-flow gasifier; Coal water slurry; Atomization

摘要：Based on the bench-scale opposed multi-burner (OMB) coal-water slurry (CWS) entrained-flow gasifica-tion platform, the influence of burner geometry on atomization characteristics of the CWS in gasifier is investigated. The visualization imaging system is used to obtain image sequences that record the dynamic process of the CWS atomization. The effective image processing algorithms and particle tracking algorithms are applied to analyze and discuss the atomization, particle motion and particle fluctuation characteristics. The primary atomization mode of the CWS jets with different burner structures is the superpulsating atomization. With the increase of A1/A2, the Sauter mean diameter (SMD) of the CWS dro-plets in the statistical region first increases and then decreases. Along the radial distance, the SMD of the CWS droplets generally increases first and then decreases. As the burner outlet area ratio increases, the particle size fluctuates more intensely, and the particle velocity turbulence first decreases and then increases. (c) 2021 Elsevier Ltd. All rights reserved.