Measurement of oil volume fraction and velocity distributions in vertical oil-in-water flows using ERT and a local probe

被引:9
作者
Li H. [1 ]
Wang M. [2 ]
Wu Y.-X. [1 ]
Ma Y.-X. [2 ]
Williams R. [2 ]
机构
[1] Institute of Mechanics, Chinese Academy of Sciences
[2] Institute of Particle Science and Engineering, University of Leeds
来源
Journal of Zhejiang University-SCIENCE A | 2005年 / 6卷 / 12期
关键词
Electric resistance tomography; Local probe; Oil-in-water flow; Volume fraction and velocity distribution;
D O I
10.1631/jzus.2005.A1412
中图分类号
学科分类号
摘要
This paper presents the use of a high performance dual-plane electric resistance tomography (ERT) system and a local dual-sensor conductance probe to measure the vertical upward oil-in-water pipe flows in which the mean oil volume fraction is up to 23.1%. A sensitivity coefficient back-projection (SBP) algorithm was adopted to reconstruct the flow distributions and a cross correlation method was applied to obtain the oil velocity distributions. The oil volume fraction and velocity distributions obtained from both measurement techniques were compared and good agreement was found, which indicates that the ERT technique can be used to measure the low fraction oil-water flows. Finally, the factors affecting measurement precision were discussed.
引用
收藏
页码:1412 / 1415
页数:3
相关论文
共 8 条
[1]  
Beck M.S., Plaskowski A., Cross correlation flow meters: Their design and application, (1987)
[2]  
Dickin F.J., Williams R.A., Beck M.S., Determination of composition and motion of multicomponent mixtures in process vessels using electrical impedance tomography - I. Principles and process engineering applications, Chemical Engineering Science, 48, pp. 1883-1897, (1993)
[3]  
Lucas G.P., Mishra R., Panayotopoulos N., Power law approximations to gas volume fraction and velocity profiles in low void fraction vertical gas-liquid flows, Flow Measurement and Instrumentation, 15, pp. 271-283, (2004)
[4]  
Ma Y., Holliday N., Dai Y., Wang M., Williams R.A., Lucas G.P., A high performance online data processing EIT system, Proceedings of 3rd World Congress on Industrial Process Tomography, pp. 27-32, (2003)
[5]  
Maxwell J.C., A Treatise on Electricity and Magnetism, (1881)
[6]  
Wang M., Mann R., Dickin F.J., Electrical resistance tomographic sensing systems for industrial applications, Chem. Eng. Comm., 175, pp. 49-70, (1999)
[7]  
Wang M., Yin W., Holliday N., A Highly adaptive electrical impedance sensing system for flow measurement, Measurement Science and Technology, 13, pp. 1884-1889, (2002)
[8]  
Wu Y., Li H., Wang M., Williams R.A., Characterization of air-water two-phase vertical flow by using electrical resistance imaging, Canadian Journal of Chemical Engineering, 83, pp. 37-41, (2005)