Experimental investigations into the flow characteristics of pneumatically conveyed biomass particles using an electrostatic sensor array
Experimental investigations into the flow characteristics of pneumatically conveyed biomass particles using an electrostatic sensor array
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DOI：
10.1016/j.fuel.2014.11.048
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发表时间：
2015-07-01
期刊：
影响因子：
7.4
通讯作者：
Yan, Yong
中科院分区：
文献类型：
--
作者：
Coombes, James Robert;Yan, Yong
由于世界各国都在推动增加使用可再生能源，生物质燃料的燃烧是这一战略的重要组成部分。许多燃煤发电站已转换为混合燃烧，在某些情况下完全使用生物质燃料。然而，由于其尺寸、形状的可变性和气固两相流的复杂性，在气力输送管道中的生物质颗粒的监测是困难的。本文介绍了使用一种新型的静电传感器阵列，能够测量颗粒的速度和浓度分布在整个直径的管道进行的实验研究的结果。在一系列流动条件下，对一种常见的生物质燃料-杨柳的不同粒径的水平和垂直管段进行了实验测试。实验结果表明，较小的生物质颗粒在整个管道直径上具有更稳定的流动特性。(C)2014爱思唯尔有限公司版权所有。
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.