Study on a voidage measurement method based on ERT system and Otsu algorithm

Author

Yu, Jinhua

Author_Institution

Coll. of Inf. & Electron. Eng., Zhejiang Gongshang Univ., Hangzhou

fYear

2008

fDate

2-4 July 2008

Firstpage

4939

Lastpage

4942

Abstract

A new voidage measurement method for gas-liquid two-phase flow based on electrical resistance tomography (ERT) and Otsu algorithm is studied. A 16-electrode ERT system carries out for data collection and image reconstruction. Otsu algorithm is used to select the threshold adaptively and binarize the reconstructed images. According to the binarized images, the cross-sectional void fraction of gas-liquid two-phase flow is calculated. Then the average void fraction can be achieved through continuous sampling. Experiments show that the errors of the measured average void fraction values are within 8% and the method is effective.

Keywords

flow measurement; flow visualisation; image reconstruction; mechanical engineering computing; tomography; two-phase flow; Ostu algorithm; binarized images; cross-sectional void fraction; electrical resistance tomography; gas-liquid two-phase flow; image reconstruction; voidage measurement method; Electric resistance; Electric variables measurement; Electrical resistance measurement; Fluid flow measurement; Image reconstruction; Image sampling; Tomography; ERT; Otsu algorithm; Two-phase flow; reconstruction;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Decision Conference, 2008. CCDC 2008. Chinese

Conference_Location

Yantai, Shandong

Print_ISBN

978-1-4244-1733-9

Electronic_ISBN

978-1-4244-1734-6

Type

conf

DOI

10.1109/CCDC.2008.4598267

Filename

4598267