Title :
Monitoring system of gas-liquid two-phase flow
Author :
Ji, Haifeng ; Huang, Zhiyao ; Wang, Baoliang ; Li, Haiqing
Author_Institution :
Nat. Lab. of Ind. Control Technol., Zhejiang Univ., Hangzhou, China
Abstract :
A new monitoring system of the flow states of gas-liquid two-phase flow has been developed by using a differential pressure transducer combined with wavelet analysis and fuzzy pattern recognition technique. The differential pressure signal of gas-liquid two-phase flow was obtained under the states of the different flow patterns, including bubble flow, slug flow, plug flow and annular flow. The acquired differential pressure signals were analyzed by the wavelet transform and the eigenvalues were extracted. The flow state of the system was monitored by fuzzy pattern recognition technique. The experimental results show that the developed system can monitor flow states of horizontal gas-liquid two-phase flow effectively.
Keywords :
computerised monitoring; feature extraction; flow measurement; flowmeters; fuzzy logic; mechanical engineering computing; physics computing; pipe flow; pressure transducers; two-phase flow; annular flow; bubble flow; differential pressure signal; differential pressure transducer; flowmeter; fuzzy pattern recognition; gas-liquid two-phase flow; monitoring system; plug flow; slug flow; wavelet analysis; Eigenvalues and eigenfunctions; Fuzzy systems; Monitoring; Pattern analysis; Pattern recognition; Plugs; Signal analysis; Transducers; Wavelet analysis; Wavelet transforms;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2004. IMTC 04. Proceedings of the 21st IEEE
Print_ISBN :
0-7803-8248-X
DOI :
10.1109/IMTC.2004.1351552
