Fundamental Study of Sloshing inside Liquid Hydrogen Tank with External-Heating-TypeMgB<sub>2</sub> Level Sensors for Marine Transportation

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Other Title
  • 海上輸送のための外部加熱型MgB<sub>2</sub>液面センサーによる液体水素タンク内部のスロッシングの基礎研究
  • 海上輸送のための外部加熱型MgB₂液面センサーによる液体水素タンク内部のスロッシングの基礎研究
  • カイジョウ ユソウ ノ タメ ノ ガイブ カネツガタ MgB ₂ エキメン センサー ニ ヨル エキタイ スイソ タンク ナイブ ノ スロッシング ノ キソ ケンキュウ

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Description

<p>We aim to provide basic technology for the marine transportation of liquid hydrogen (LH2). As one of the basic technologies, we are currently developing an external-heating-type superconducting magnesium diboride (MgB2) level sensor for large liquid hydrogen tanks. The optimization of sensor performance and the effect of sensor length on thermal response were previously reported. Sloshing inside a liquid hydrogen tank, which is predicted to be more complex than that of liquefied natural gas (LNG), has not yet been clarified. In this study, we examined sloshing in a small liquid hydrogen tank using multiple external-heating-type MgB2 sensors since these sensors exhibit good level-detection characteristics. As a result, the liquid level detection error from these sensors was up to about 4 mm, thereby showing good characteristics of dynamic level detection. Moreover, sloshing measurements with five level sensors were carried out successfully.</p>

Journal

  • Marine Engineering

    Marine Engineering 51 (3), 383-389, 2016

    The Japan Institute of Marine Engineering

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