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Recognition Statistic and Analysis of Bubbles in Flow Boiling

[+] Author Affiliations
Zhongyi Wang, Pu-zhen Gao, Dali Yu, Zheng Yang, Hanying Chen, Chong Zou, Chong Chen

Harbin Engineering University, Harbin, Heilongjiang, China

Paper No. ICONE22-31197, pp. V02BT09A056; 5 pages
doi:10.1115/ICONE22-31197
From:
  • 2014 22nd International Conference on Nuclear Engineering
  • Volume 2B: Thermal Hydraulics
  • Prague, Czech Republic, July 7–11, 2014
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-4591-2
  • Copyright © 2014 by ASME

abstract

Void fraction measurement is very important in the thermal-hydraulic experiments. In this work, a new measuring method was proposed to detect the bubbles’ size and sketch by using the high-speed camera. To check the accuracy of this method, flow boiling condition in the vertical rectangular narrow channel was considered. Firstly, boiling phenomenon was observed in the test pipe. Then recognition and statistic of bubbles were performed to obtain the bubbles’ quantity, size and speed. The conclusion of this work is that the bubble images can be divided into nearly round bubbles and irregular bubbles and this method have a good performance in the bubble s’ recognition and statistic.

Copyright © 2014 by ASME

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