Influence of Underground Structures on Diffusion Behavior of Hydrogen Leaking from Buried Pipes

DOI
  • Yamasaki Shuichi
    Department of Automotive Science, Graduate School of Integrated Frontier Sciences, Kyushu University: Motoka 744, Nishi-ku, Fukuoka 819-0395 Japan, Osaka Gas Network Co., Ltd.
  • Ichikawa Yuji
    Shikoku Research Institute Inc.
  • Ogita Masakazu
    Shikoku Research Institute Inc.
  • Ishihara Tatsumi
    Department of Automotive Science, Graduate School of Integrated Frontier Sciences, International Institute of Carbon-Neutral Energy Research, Kyushu University

Bibliographic Information

Other Title
  • 地中構造体の影響を考慮した地中埋設管からの 漏出時の水素拡散挙動

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Description

<p>Hydrogen is expecting as an energy carrier for reducing CO2 emissions that cause global warming. Pipeline supply system is considered as an efficient method for supplying hydrogen. However, when H2 pipeline becomes widespread, there is a risk of accidents caused by leaked hydrogen from the buried pipeline, and identifying the point of gas leakage is important issues from safety. In the case of hydrogen leakage under the ground, it is necessary to detect the leakage point efficiently. Assuming the sensor survey used in the current city gas supply, it is highly important knowledge of the diffusion behavior of hydrogen under the ground and atmosphere for the effectiveness and detection efficiency of the survey. In addition, when considering actual operation, underground structures （protective plates, building foundations, etc.） affect the diffusion behavior of hydrogen. In this study, we organized the fundamental knowledge about the diffusion behavior of hydrogen considering the influence of underground structures through the experiment, and verified the applicability of the survey method.</p>

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Details 詳細情報について

  • CRID
    1390574570124181120
  • DOI
    10.18943/safety.61.4_234
  • ISSN
    24240656
    05704480
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Disallowed

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