Measurement for Individual Gas-Liquid Two-Phase Flow Rates Based on Stochastic Features of Differential Pressure Fluctuation

2007 ◽  
Author(s):  
Tomomi Uchiyama ◽  
Hirokazu Tominaga ◽  
Kiyoshi Minemura
Keyword(s):  
Two Phase Flow ◽  
Pressure Fluctuations ◽  
Vortex Generator ◽  
Measuring Method ◽  
Differential Pressure ◽  
Phase Flow ◽  
Two Phase ◽  
Flow Rates ◽  
Individual Phase ◽  
The Individual

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.

scholarly journals Correlative Mapping Method for Measuring Individual Phase Flow Rates of Air-Water Two-Phase Flow Based on Stochastic Features.

1997 ◽  
Vol 63 (612) ◽  
pp. 2707-2712
Author(s):  
Kiyoshi MINEMURA ◽  
Takeaki TAKEOKA ◽  
Shinji SHODA ◽  
Kazuyuki EGASHIRA ◽  
Yutaka OGAWA
Keyword(s):  
Two Phase Flow ◽  
Mapping Method ◽  
Phase Flow ◽  
Two Phase ◽  
Flow Rates ◽  
Individual Phase

scholarly journals Correlative Mapping Method for Measuring Individual Phase Flow Rates in Air-Water Two-Phase Flow Based on Stochastic Features.

1998 ◽  
Vol 41 (4) ◽  
pp. 863-870 ◽  
Author(s):  
Kiyoshi MINEMURA ◽  
Takeaki TAKEOKA ◽  
Shinji SYODA ◽  
Kazuyuki EGASIRA ◽  
Yutaka OGAWA
Keyword(s):  
Two Phase Flow ◽  
Mapping Method ◽  
Phase Flow ◽  
Two Phase ◽  
Flow Rates ◽  
Individual Phase

Investigating the Capability of Acoustic Emission Technology to Determine Slug Velocity in Gas/Water Two Phase Flow in Horizontal Pipes

2013 ◽  
Vol 315 ◽  
pp. 545-551
Author(s):  
M.A. Alssayh ◽  
Shuib Husin ◽  
A. Addali ◽  
David Mba
Keyword(s):  
Acoustic Emission ◽  
Chemical Engineering ◽  
Two Phase Flow ◽  
Pressure Fluctuations ◽  
Phase Flow ◽  
Two Phase ◽  
Horizontal Pipes ◽  
Acoustic Emission Sensors ◽  
Gas Liquid Flow ◽  
The Individual

Two phase flow is a common phenomenon that exists in the petroleum and chemical engineering industrial fields. An important feature employed to describe two phase flow is the flow regime which varies depending on the individual velocities of the components within the two-phase flow. One of these regimes, the slug regime, can create significant pressure fluctuations that compromise the integrity of the transporting structure (pipes, separators, etc). This is in addition to other unwanted effects such as flooding at the receiving end, an increase in deposits of hydrates and corrosion. Under such circumstances the detection of the slug and its associated characteristics are vitally important to the operator. This experimental study looks into the application of Acoustic Emission (AE) technology for detecting slug velocity in two phase (gas/liquid) flow. It is verified that slug velocity can be determined by using acoustic emission sensors.

Sign in / Sign up

Export Citation Format

Share Document