ISSN Imprimir: 1065-3090
ISSN On-line: 1940-4336
Volume 26, 2019
Volume 25, 2018
Volume 24, 2017
Volume 23, 2016
Volume 22, 2015
Volume 21, 2014
Volume 20, 2013
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Volume 18, 2011
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Journal of Flow Visualization and Image Processing
DEVELOPMENT OF TIME-AVERAGED X-RAY CT SYSTEM FOR MEASURING GAS-LIQUID TWO-PHASE PIPING FLOW
Hitachi, Ltd. Research & Development Group 1-1, Ohmika-cho, 7-chome,
Hitachi-shi, Ibaraki-ken 319-1292, Japan
Hitachi-GE Nuclear Energy, Ltd. Hitachi Works, 1-1, Saiwai-cho, 1-chome,
Hitachi-shi, Ibaraki-ken 317-0073, Japan
Shizuoka University, Research Institute of Electronics, 3-5-1, Jouhoku,
3-chome, Naka-ku, Hamamatsu-shi, Shizuoka-ken 432-8011, Japan
We have developed a noncontact, nondestructive void fraction measurement system on the basis of three-dimensional X-ray CT with the aim of fully understanding the behavior of high-velocity, high-pressure gas-liquid two-phase flow in piping. To measure the void fraction in the flow at high velocity, the time-averaged CT image acquisition by a multiple averaging method was proposed. It was confirmed that the time-averaged CT image was obtained by the captured image of a sample rotating at a high speed in this system. Furthermore, we measured the void fraction in high-velocity, high-pressure piping and confirmed that the proposed method performed as expected even under actual conditions from a comparison result obtained with a differential pressure gauge.
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