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<p>Liquefied hydrogen carriers are an effective transportation means for importing hydrogen. To predict its effectiveness, a method for calculating heat ingress into a liquefied hydrogen carrier was developed. The prediction method was validated by predicting heat ingress into a 1250&#xa0;m<sup>3</sup> cargo tank loaded on a liquefied hydrogen carrier, measuring the evaporation of liquefied hydrogen stored in the tank, and conducting a long-distance marine transport test. The heat ingress into the carrier was approximately 0.3%/d in terms of the boil-off rate. This proved that owing to the pressure-accumulation design, navigation was possible without releasing hydrogen into the atmosphere.</p>

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Comparison of measured and calculated heat ingress into cargo tanks of liquefied hydrogen carriers during international voyages

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年9月3日

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  • Akihiko Inomata,
  • Kazuto Gokan,
  • Takashi Yoshiyama,
  • Takamichi Hosono,
  • Hidekazu Iwasaki,
  • Kazuma Maekawa,
  • Minoru Takeda

摘要

Liquefied hydrogen carriers are an effective transportation means for importing hydrogen. To predict its effectiveness, a method for calculating heat ingress into a liquefied hydrogen carrier was developed. The prediction method was validated by predicting heat ingress into a 1250 m3 cargo tank loaded on a liquefied hydrogen carrier, measuring the evaporation of liquefied hydrogen stored in the tank, and conducting a long-distance marine transport test. The heat ingress into the carrier was approximately 0.3%/d in terms of the boil-off rate. This proved that owing to the pressure-accumulation design, navigation was possible without releasing hydrogen into the atmosphere.