BI Dapeng1, ZHANG Jinling1, XIE Wenxuan2, YUAN Ping1, LI Weiwei1, ZHANG Jiansheng1
(1. Shanxi Research Institute for Clean Energy, Tsinghua University, Taiyuan 030001, China;2. Shanxi Yangmei Chemical Industry Machinery Co., Ltd, Taiyuan 030001, China)
Abstract: Optical-fiber probe (OFP) was used to measure the particle velocity in a negative pressure pneumatic conveying test rig in this paper. The results show that the upper particle velocity is greater than the lower one at the same gas superficial velocity and the same solid flow rate. The velocity difference decreases with the increasing in gas superficial velocity. Yang’s correlation gives the best prediction of the particle velocity among the existing correlations and a more accurate gas-solid velocity correlation is obtained by the experimental optimization of the solid friction factor in Yang’s correlation.
Keywords: horizontal pipe; gas-solid velocity; optical-fiber probe; solid friction factor
文章编号：1008-5548(2020)02-0001-06
DOI:10.13732/j.issn.1008-5548.2020.02.001
收稿日期： 2018-10-15，修回日期：2019-08-27，在线出版时间：2019-12-30 15:43。
基金项目：国家重点研发计划项目，编号：2017YFB0602703。
第一作者简介：毕大鹏(1986—)，男，博士，工程师，研究方向为煤炭清洁转化利用。E-mail：bidp@sice-tsinghua.org。
通信作者简介：张建胜(1972—)，男，博士，教授，博士生导师，研究方向为煤炭清洁转化利用。E-mail：zhang-jsh@tsinghua.edu.cn。
中图分类号：TQ536 文献标志码：A
