Novel multifunctional optical-fiber probe: II. High-density CFB measurements
Novel multifunctional optical-fiber probe: II. High-density CFB measurements
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DOI：
10.1002/aic.690490608
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发表时间：
2003-06-01
期刊：
影响因子：
3.7
通讯作者：
Bi, XT
中科院分区：
文献类型：
--
作者：
Liu, JZ;Grace, JR;Bi, XT
本文第一部分中描述的新型平行三光纤光学探头适用于同时确定多相悬浮液中的局部瞬时固体体积浓度、速度和通量。研究了高密度循环流化床（HDCFB）中局部颗粒浓度、速度和流量的径向分布及其波动规律。局部颗粒速度的波动与颗粒浓度之间存在很强的相关性。示出的光学探头提供了一种手段，评估替代的测量技术，通常采用在早期的研究。
The novel parallel three-fiber optical probe described in Part I of this article is applied to determine simultaneously local instantaneous solids volume concentration, velocity, and flux in multiphase suspensions. Radial distributions of local particle concentration, velocity, and flux and their fluctuations in a high-density circulating fluidized bed (HDCFB) are presented. A strong correlation exists between fluctuations of local particle velocity and particle concentration. The optical probe is shown to provide a means of evaluating alternative measurement techniques that have commonly been employed in earlier studies.