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《中国化学工程学报(英文版)》 2006-01
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The Effect of Sparger Geometry on Gas Bubble Flow Behaviors Using Electrical Resistance Tomography

JIN Haibo a,*, M. Wangb and R. A. Williamsb a Department of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China b School of Process, Environmental and Material Engineering, University of Leeds, Leeds LS2 9JT, UK  
By electrical resistance tomography (ERT) the cross sectional profiles of gas hold-up in a φ56mm bubble column are obtained with four designs of gas sparger. The effect of sparger geometry on the bubble distribution is re-vealed by applying a sensitivity conjugated gradients reconstruction method (SCG). Experimental results show that over-all hold-up obtained by ERT is generally in good agreement with those measured with the pressure transducer and the ERT system produces informative evidence that the radial profiles of hold-up is very similar to the sparger design in the lower section of bubble column. Meanwhile, the rise velocity of bubble swarm and the Sauter mean bubble size are evaluated using ERT based on dynamic gas disengagement theory. The experimental results are in good agreement with correlations and conventional estimation obtained using pressure transmitter methods.
【CateGory Index】: TQ021
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【References】
Chinese Journal Full-text Database 2 Hits
1 SUN Meng 1,LIU Shi 2,LI Zhihong 2 and LEI Jing 1 1 Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080, China 2 School of Energy & Power Engineering, North China Electric Power University, Beijing 102206, China;Application of Electrical Capacitance Tomography to the Concentration Measurement in a Cyclone Dipleg[J];中国化学工程学报(英文版);2008-04
2 JIANG Shaokun 1 ,MA Youguang1,FAN Wenyuan 1 ,YANG Ke1and LI Huaizhi 2 1State Key Laboratory of Chemical Engineering,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China2 Laboratoire des Sciences du Génie Chimique,CNRS-ENSIC-INPL,1,rue Grandville,BP 451,54001 Nancy cedex,France;Chaotic Characteristics of Bubbles Rising with Coalescences in Pseudoplastic Fluid[J];中国化学工程学报(英文版);2010-01
【Co-references】
Chinese Journal Full-text Database 4 Hits
1 CAO Chang-qing(College of Chemical Engineering,Qingdao University of Science and Technology,Qingdao 266042,China);Effect of liquid viscosity on radial distribution of local phase holdups in gas-liquid-solid three-phase fluidized bed[J];Journal of Qinghai University;2006-02
2 HE Guang-xiang,ZHANG Tong-wang,JIN Hai-bo,TONG Ze-min (Department of Chemical Engineering,Beijing Institute of Petrochemical Technology,Beijing 102617,China);Gas Holdup in Large Scale Slurry Bubble Column Reactor with Jet Sparger[J];Petrochemical Technology;2003-06
3 NIU Gang JIA Zhihai WANG Jing School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200030, China;Void Fraction Measurement in Oil-Gas Transportation Pipeline Using an Improved Electrical Capacitance Tomography System[J];中国化学工程学报(英文版);2004-04
4 LIU Xin and JIANG Nan Department of Mechanics, Tianjin University, Tianjin 300072, China;Passive Control of Turbulent Jet Flow with Wedged Nozzle[J];中国化学工程学报(英文版);2005-04
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