文献类型：期刊文献

英文题名：Rotation induced by non-uniform gas-solid phase reactions of a non-spherical particle

作者：Zhou, Shengyu[1,2];Shen, Zhongjie[1,2];Xu, Jianliang[1,2];Liang, Qinfeng[1,2];Dai, Zhenghua[1,2];Liu, Haifeng[1,2]

机构：[1]East China Univ Sci & Technol, Shanghai Engn Res Ctr Coal Gasificat, POB 272, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Natl Energy Coal Gasificat Technol Res & Dev Ctr, POB 272, Shanghai 200237, Peoples R China

年份：2022

卷号：327

外文期刊名：FUEL

收录：;EI(收录号：20222712330952);WOS:【SCI-EXPANDED(收录号:WOS:000854043700004)】；

基金：This work was supported by the National Natural Science Foundation of China [Grant number 21878082] .

语种：英文

外文关键词：Rotation; Induced thrust; Gas-solid phase reaction; Non-spherical particle; Active sites distribution

摘要：Particle rotation plays an important role in gas-solid flow. The particle rotation induced by gas-solid phase reaction is investigated in this work. The non-uniform gas-solid phase reaction direct results to the rotation of a non-spherical particle. Based on the random distribution of active sites, the combustion of non-spherical particles is numerical investigated. According to the numerical results of chemical reaction rate on the particle surface, the net force and the rotation frequency of non-spherical particle were obtained by post-processing. The bearing force and rotation of cubic particles caused by gas-solid chemical reactions are systematically numerically studied. The rotational frequency is basically consistent with the experimental results in the reference. For coal char particles with an active area ratio of 0.8, the rotational frequency can reach 1000 Hz at side length of 60 mu m. The effects of active area ratio, ambient gas temperature and particle size on the induced thrust and the rota-tional frequency of coal char particles are analyzed. The unbalanced force on the particle surface increase with the reaction rates. The rotation velocity increases with the decrease of particle size. And it increases with the increase of ambient temperature..