Experimental Study on Gas-Solid Flow in the Spouted Bed under Longitudinal Vortex Effect | |
Wu, Feng2; Che, Xinxin2; Duan, Haojie2; Shang, Lingyi2; Ma, Xiaoxun2; Wang, Gang1; Hui, Zhiquan3 | |
刊名 | ACS OMEGA |
2019-11-12 | |
卷号 | 4期号:20页码:18880-18888 |
ISSN号 | 2470-1343 |
DOI | 10.1021/acsomega.9b02920 |
英文摘要 | To strengthen the particles radial movement and mixing, the longitudinal vortex generator of a sphere was adopted in the spouted bed in this study. To find the influence of the longitudinal vortex and particle properties on axial and radial velocities of particles in a 152 mm-diametered spouted bed, particle image velocimetry (PIV) was employed. The experimental results show that the addition of the longitudinal vortex generator caused the vortex movement of high-speed gas and induced a considerable secondary fine vortex in the cross section of the spouted bed, and the existence of longitudinal vortex significantly improved the radial velocity of particles, compared with that of the conventional spouted bed. Due to the effect of longitudinal vortex on particles, the phenomenon of early dropping of particles was increasingly obvious with the rise in bed height, and the value of axial velocity of particle phase was negative. With the decrease in the particle diameter, the longitudinal vortex effect of gas-driven particle movement would be enhanced. The longitudinal vortex could enhance particle velocity under a wide range of particle diameters, and the enhancement factor. decreased with the rise in the particle diameter and gradually approaches to 1. |
WOS研究方向 | Chemistry |
语种 | 英语 |
出版者 | AMER CHEMICAL SOC |
WOS记录号 | WOS:000496814700044 |
内容类型 | 期刊论文 |
源URL | [http://ir.lut.edu.cn/handle/2XXMBERH/155308] |
专题 | 兰州理工大学 |
作者单位 | 1.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Gansu, Peoples R China; 2.Northwest Univ, Sch Chem Engn, Xian 710069, Shaanxi, Peoples R China; 3.Guangzhou Special Pressure Equipment Inspect & Re, Guangzhou 510663, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Wu, Feng,Che, Xinxin,Duan, Haojie,et al. Experimental Study on Gas-Solid Flow in the Spouted Bed under Longitudinal Vortex Effect[J]. ACS OMEGA,2019,4(20):18880-18888. |
APA | Wu, Feng.,Che, Xinxin.,Duan, Haojie.,Shang, Lingyi.,Ma, Xiaoxun.,...&Hui, Zhiquan.(2019).Experimental Study on Gas-Solid Flow in the Spouted Bed under Longitudinal Vortex Effect.ACS OMEGA,4(20),18880-18888. |
MLA | Wu, Feng,et al."Experimental Study on Gas-Solid Flow in the Spouted Bed under Longitudinal Vortex Effect".ACS OMEGA 4.20(2019):18880-18888. |
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