G102 Development for measuring method of individual phase flow rates of gas-liquid two-phase mixtures based on waveform of differential pressure fluctuation

2007 ◽  
Vol 2007 (0) ◽  
pp. _G102-a_
Author(s):  
Hirokazu TOMINAGA ◽  
Tomomi UCHIYAMA ◽  
Kiyoshi MINEMURA
Author(s):  
Tomomi Uchiyama ◽  
Hirokazu Tominaga ◽  
Kiyoshi Minemura

This study proposes a measuring method for the individual phase flow rates of gas-liquid two-phase mixtures flowing through a pipe. First, the time-variations for pressure are measured at three points around a vortex generator mounted in the pipe under the known flow rates. Secondly, the stochastic features of the differential pressure fluctuations, such as the mean and the standard deviation, are calculated to construct a database relating the flow rates with the stochastic features. Consequently, if the differential pressure fluctuations are measured under unknown flow rates, the individual phase flow rates are successfully identified from the database. A neural network is employed for the identification. This study also applies the proposed method for the measurement of air-water two-phase flow and discusses the measured results.


1997 ◽  
Vol 63 (612) ◽  
pp. 2707-2712
Author(s):  
Kiyoshi MINEMURA ◽  
Takeaki TAKEOKA ◽  
Shinji SHODA ◽  
Kazuyuki EGASHIRA ◽  
Yutaka OGAWA

1998 ◽  
Vol 41 (4) ◽  
pp. 863-870 ◽  
Author(s):  
Kiyoshi MINEMURA ◽  
Takeaki TAKEOKA ◽  
Shinji SYODA ◽  
Kazuyuki EGASIRA ◽  
Yutaka OGAWA

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