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IMECH-IR  > 水动力学与海洋工程重点实验室(2009-2011)  > 期刊论文
Title: MEASUREMENT OF SOLID SLURRY FLOW VIA CORRELATION OF ELECTROMAGNETIC FLOW METER, ELECTRICAL RESISTANCE TOMOGRAPHY AND MECHANISTIC MODELLING
Author: Xu JY(许晶禹); Wu YX(吴应湘); Zheng ZC(郑之初); Wang M; Munir B; Oluwadarey HI; Schlaberg HI; Williams RA
Source: Journal of Hydrodynamics
Issued Date: 2009
Volume: 21, Issue:4, Pages:557-563
Abstract: The study presented here was carried out to obtain the actual solids flow rate by the combination of electrical resistance tomography and electromagnetic flow meter. A new in-situ measurement method based on measurements of the Electromagnetic Flow Meters (EFM) and Electrical Resistance Tomography (ERT) to study the flow rates of individual phases in a vertical flow was proposed. The study was based on laboratory experiments that were carried out with a 50 mm vertical flow rig for a number of sand concentrations and different mixture velocities. A range of sand slurries with median particle size from 212 mu m to 355 mu m was tested. The solid concentration by volume covered was 5% and 15%, and the corresponding density of 5% was 1078 kg/m(3) and of 15% was 1238 kg/m(3). The flow velocity was between 1.5 m/s and 3.0 m/s. A total of 6 experimental tests were conducted. The equivalent liquid model was adopted to validate in-situ volumetric solids fraction and calculate the slip velocity. The results show that the ERT technique can be used in conjunction with an electromagnetic flow meter as a way of measurement of slurry flow rate in a vertical pipe flow. However it should be emphasized that the EFM results must be treated with reservation when the flow pattern at the EFM mounting position is a non-homogenous flow. The flow rate obtained by the EFM should be corrected considering the slip velocity and the flow pattern.
Keyword: Slurry Measurement ; Electrical Resistance Tomography (Ert) ; Electromagnetic Flow Meters (Efm) ; In-Situ Mean Volumetric Fraction ; Slip Velocity
Language: 英语
Indexed Type: SCI
Corresponding Author: Xu JY
Correspondent Email: xujingyu@imech.ac.cn
DOI: 10.1016/S1001-6058(08)60184-5
DOC Type: Article
WOS Subject: Mechanics
WOS Subject Extended: Mechanics
WOS ID: WOS:000270869100016
ISSN: 1001-6058
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/33579
Appears in Collections:水动力学与海洋工程重点实验室(2009-2011)_期刊论文

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Journal Of Hydrodynamics.2009,21(4):557-563
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