Abstract
The scope of the present study is to experimentally investigate the oil bubble size distribution in oil-in-water emulsions. The geometry parameter of a dual-sensor probe is firstly optimized through examining its electrical field distribution and sensitivity. Afterward, an eight-channel distributed dual-sensor probe array is designed for a pipe with 20mm inner diameter (ID) to measure the local holdup, bubble velocity as well as bubble size of the dispersed oil phase in oil-in-water emulsions under low mixture velocity and high water-cut. The results indicate that the changes in mixture velocity and water-cut substantially affect the oil bubble size distribution on different positions at the pipe cross section. With the extraction of the increasing rate regarding multi-scale cross entropy (MSCE) from the fluctuating signals from the leading and rear sensor of the dual-sensor probe, the dynamic instability in the motion of oil bubbles is analyzed. It proves that the multi-scale cross entropy can be an effective indicator on globally characterizing the nonlinear dynamics in oil-in-water emulsions at the pipe cross section.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
