Experimental investigations into the flow characteristics of pneumatically conveyed biomass particles using an electrostatic sensor array

作     者：Coombes, James Robert Yan, Yong 

作者机构：Univ Kent Sch Engn & Digital Arts Instrumentat Control & Embedded Syst Res Grp Canterbury CT2 7NT Kent England 

出 版 物：《FUEL》 (燃料)

年 卷 期：2015年第151卷

页      面：11-20页

核心收录：

学科分类：0820[工学-石油与天然气工程] 080702[工学-热能工程] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：Research Councils UK's Energy Programme [EP/F061307/1] EPSRC [EP/F061307/1] Funding Source: UKRI 

主　　题：Biomass Velocity profile Concentration profile Electrostatic sensor Sensor array 

摘      要：As countries across the world are pushing towards the increased use of renewable sources of energy the burning of biomass fuels makes up an important part of this strategy. Many coal fired power stations have been converted to co-firing and in some cases are being completely biomass fuelled. However, due to their variability in size, shape and the complex nature of gas-solids two-phase flow the monitoring of biomass particles in a pneumatic conveying pipeline is difficult. This paper presents the results of experimental investigations carried out using a novel electrostatic sensor array that is capable of measuring the particle velocity and concentration profiles over the whole diameter of the pipe. Experimental tests were carried out on horizontal and vertical pipe sections with different particle sizes of a common biomass fuel - willow, over a range of flow conditions. Results from the experiments indicate that smaller biomass particles have more stable flow characteristics across the whole diameter of the pipe. (C) 2014 Elsevier Ltd. All rights reserved.