Experimental Investigation of Rising Gas Bubble Characteristics from a Vertical Tube under CCFL Condition
Joint Authors
Matsumura, Kunihito
Kaminaga, Fumito
Source
Science and Technology of Nuclear Installations
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-03-22
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
This paper describes an experimental study of gas/liquid countercurrent flow in a vertical circular tube.
CCFL experiments were carried out with three different water levels in the upper plenum, two different tube diameters.
Measurements were made for liquid and gas flow rates, time variations of pressure at locations of the upper entry of the tube and lower plenum.
Visual observations were also conducted to investigate the relationship between rising gas bubble characteristics and time variation of gas pressure at the upper entry of the tube.
The results indicate that one bubble formation cycle (e.g., bubble growth, expansion, and detachment into the water pool) corresponds to one pressure fluctuation cycle.
For the 20 mm diameter tube, it was confirmed that there was a characteristic waiting time between bubble cycles in which no bubble was formed at the upper entry of the tube.
The waiting time is a favorable time for a liquid introduction into the tube from the upper plenum.
The bubble volumes are compared with existing bubble formation correlations.
American Psychological Association (APA)
Matsumura, Kunihito& Kaminaga, Fumito. 2012. Experimental Investigation of Rising Gas Bubble Characteristics from a Vertical Tube under CCFL Condition. Science and Technology of Nuclear Installations،Vol. 2012, no. 2012, pp.1-15.
https://search.emarefa.net/detail/BIM-497894
Modern Language Association (MLA)
Matsumura, Kunihito& Kaminaga, Fumito. Experimental Investigation of Rising Gas Bubble Characteristics from a Vertical Tube under CCFL Condition. Science and Technology of Nuclear Installations No. 2012 (2012), pp.1-15.
https://search.emarefa.net/detail/BIM-497894
American Medical Association (AMA)
Matsumura, Kunihito& Kaminaga, Fumito. Experimental Investigation of Rising Gas Bubble Characteristics from a Vertical Tube under CCFL Condition. Science and Technology of Nuclear Installations. 2012. Vol. 2012, no. 2012, pp.1-15.
https://search.emarefa.net/detail/BIM-497894
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-497894