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Novel multifunctional optical‐fiber probe: II. High‐density CFB measurements
Author(s) -
Liu Jinzhong,
Grace John R.,
Bi Xiaotao
Publication year - 2003
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690490608
Subject(s) - flux (metallurgy) , particle (ecology) , fluidized bed combustion , optical fiber , volume (thermodynamics) , fiber , mechanics , materials science , particle velocity , particle density , fluidized bed , optics , physics , thermodynamics , composite material , oceanography , metallurgy , geology
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.