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Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2005, Vol. 6 Issue (12): 14-    DOI: 10.1631/jzus.2005.A1441
    
Voidage measurement based on genetic algorithm and electrical capacitance tomography
Wang Wei-wei, Wang Bao-liang, Huang Zhi-yao, Li Hai-qing
Department of Control Science and Engineering, Zhejiang University, Hangzhou 310027, China
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Abstract  A new voidage measurement method based on electrical capacitance tomography (ECT) technique, Genetic Algorithm (GA) and Partial Least Square (PLS) method was proposed. The voidage measurement model, linear capacitance combination, was developed to measure on-line voidage. GA and PLS method were used to determine the coefficients of the voidage measurement model. GA was used to explore the optimal capacitance combination which gave significant contribution to the voidage measurement. PLS method was applied to determine the weight coefficient of the contribution of each capacitance to the voidage measurement. Flow pattern identification result was introduced to improve the voidage measurement accuracy. Experimental results showed that the proposed voidage measurement method is effective and that the measurement accuracy is satisfactory.

Key words Voidage      Two-phase flow      Genetic Algorithm (GA)      Electrical capacitance tomography (ECT)     
Received: 07 September 2004     
CLC:  TB126  
Cite this article:

Wang Wei-wei, Wang Bao-liang, Huang Zhi-yao, Li Hai-qing. Voidage measurement based on genetic algorithm and electrical capacitance tomography. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2005, 6(12): 14-.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2005.A1441     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2005/V6/I12/14

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