Investigation on applicability of time-averaged X-ray CT images in two-phase flow measurement. Issue 12 (2nd December 2019)

• Record Type: Journal Article
• Authors: Nukaga, Jun; Katono, Kenichi; Sadaoka, Noriyuki; Yasuda, Kenichi; Aoki, Toru
• Is Part Of: Journal of nuclear science and technology. Volume 56:Issue 12(2019)
• Page Start: 1130
• Page End: 1140
• Publication Date: 2019-12-02
• Subjects: X-ray -- CT -- 3D -- two-phase flow -- BWR -- thermal hydraulic conditions -- time-averaged; Nuclear engineering -- Periodicals; Nuclear physics -- Periodicals; Nuclear energy -- Periodicals; 621.4805
• DOI: 10.1080/00223131.2019.1644245
• Languages: English
• ISSNs: 0022-3131

Abstract

ABSTRACT: Measuring the void fraction between fuel rods contributes to optimizing the geometrical design of fuel bundles for boiling water reactors (BWR). In this article, a method for reconstructing a three-dimensional void fraction distribution of two-phase flow by using an X-ray CT system is proposed. The performance was evaluated by both simulation and experiment. The simulation results suggested that the accuracy of the proposed method was within ±0.02, and from the experimental results, the void fraction in gas-liquid two-phase flows was successfully obtained with sufficient accuracy.