Investigation of the void fraction–quality correlations for two-phase hydrogen flow based on the capacitive void fraction measurement

Yuki Sakamoto*, Hiroaki Kobayashi, Yoshihiro Naruo, Yuichiro Takesaki, Yo Nakajima, Atsuhiro Furuichi, Hiroki Tsujimura, Koki Kabayama, Tetsuya Sato

*この研究の対応する著者

研究成果: Article査読

11 被引用数 (Scopus)

抄録

The void fraction and vapor quality are important parameters for characterizing the gas–liquid two-phase flow. However, neither an established void fraction measurement method nor a verified void fraction – vapor quality interconversion model is available for the two-phase hydrogen flow. The object of this study is the development of a void fraction measurement technique and the investigation of the void fraction–quality correlations. A capacitive void fraction sensor was developed using the electric field analysis (EFA) and design of experiment (DOE), and it was applied in a boiling hydrogen experimental facility. The experimental conditions were as follows: the inner diameter of the heating pipe was 15 mm, the mass flux was ranged from 50 to 110 kg/m2s, and the static pressure was ranged from 250 to 300 kPaA. Further, the correlation between the thermal equilibrium quality (χac=− 0.03–0.14) and void fraction (α = 0–70%) was compared with that obtained in previously proposed models, and the void fraction – actual quality – thermal equilibrium quality interconversion models applicable to the boiling hydrogen flow were investigated. It was observed that the combination of the Sekoguchi model for thermal equilibrium quality – actual quality conversion and the Steiner drift-flux model for actual quality – void fraction conversion agreed well with the experimental results.

本文言語English
ページ(範囲)18483-18495
ページ数13
ジャーナルInternational Journal of Hydrogen Energy
44
33
DOI
出版ステータスPublished - 2019 7月 5

ASJC Scopus subject areas

  • 再生可能エネルギー、持続可能性、環境
  • 燃料技術
  • 凝縮系物理学
  • エネルギー工学および電力技術

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