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Assessment of the Hydrogen Leakage Accidents from Pipes near Accumulators at the Hydrogen Station

  • MATSUNAGA Masaki
    Graduate School of Environment and Information Sciences, Yokohama National University
  • KASAI Naoya
    Faculty of Environment and Information Sciences, Yokohama National University
  • SAKAMOTO Junji
    Institute of Advanced Sciences, Yokohama National University
  • IZATO Yuichiro
    Faculty of Environment and Information Sciences, Yokohama National University
  • SHIBUTANI Tadahiro
    Center for Creation of Symbiosis Society with Risk, Yokohama National University
  • MIYAKE Atsumi
    Institute of Advanced Sciences, Yokohama National University

Bibliographic Information

Other Title
  • 水素ステーションでの蓄圧器周辺配管からの水素漏洩による影響評価

Abstract

<p>This research aims to assess the leakage accidents in the hydrogen station with chemical hydride system. The facilities of hydrogen station were firstly assessed with the indicator by purple book of the Netherlands. As a result, the hydrogen accumulators were the most important facility in the hydrogen station. The flow rate of the leaked hydrogen from pipes near the accumulators was then analyzed with the physical modeling simulation software. In the analysis, to prevent large leakage accidents, excess flow valves that instantaneously shuts off the flow of hydrogen were very important. Finally, after the state of leakage hydrogen diffusion was analyzed, the blast pressure and the radiation of the jet flame were analyzed.</p>

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