Experimental measurements of gas–solid flow and splitting mechanisms of a coal pipe splitter with a perpendicularly arranged upstream elbow--颗粒学报PARTICUOLOGY

Zhou, H., Huang, Y., Yang, Y., Mo, G., Li, J., & Cen, K. (2016). Experimental measurements of gas–solid flow and splitting mechanisms of a coal pipe splitter with a perpendicularly arranged upstream elbow. Particuology, 25, 143-150. https://doi.org/10.1016/j.partic.2015.07.002

Experimental measurements of gas–solid flow and splitting mechanisms of a coal pipe splitter with a perpendicularly arranged upstream elbow

Hao Zhou ^*, Yan Huang, Yu Yang, Guiyuan Mo, Jianzhong Li, Kefa Cen

State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Zheda Road 38, Hangzhou 310027, Zhejiang, China

10.1016/j.partic.2015.07.002

Volume 25, April 2016, Pages 143-150

Received 11 November 2014, Revised 9 June 2015, Accepted 7 July 2015, Available online 28 September 2015, Version of Record 18 February 2016.

E-mail: zhouhao@cmee.zju.edu.cn

Highlights

• Splitting performance of coal splitter with an upstream perpendicular elbow was investigated.

• Pipe length upstream of the splitter has an important effect on particle dispersion in splitter.

• The vertical pipe length has little influence on the splitting for a perpendicular-arranged elbow.

Abstract

The effect of the vertical pipe length on the performance of a coal pipe splitter with a perpendicularly arranged upstream elbow was investigated experimentally employing a fiber optic measuring system. The upstream elbow and coal pipe splitter were installed in two perpendicular planes. Contours of distributions of the particle concentration and size were obtained in different transverse sections. The experimental data show that the maximum/minimum concentration ratio in transverse sections A, B, and C decreased rapidly as the length of the vertical pipe increased. The left/right-leg average concentration ratio remained about 1, and a balanced split was thus achieved. With a perpendicularly arranged upstream elbow, the vertical pipe length had little effect on the splitter performance, which is beneficial for engineering design and convenient for industrial application.

Graphical abstract

Keywords

Gas–solid flow; Concentration measurement; Coal pipe splitter; Fiber optic sensor

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