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Introduction of Scenario for Safe Use of Welded Joints Under High Pressure Hydrogen Gas

[+] Author Affiliations
Hajime Fukumoto, Hiroshi Kobayashi, Shinji Oshima, Kazunori Kawamata

Japan Petroleum Energy Center, Minato, Japan

Paper No. PVP2017-65155, pp. V06BT06A033; 4 pages
  • ASME 2017 Pressure Vessels and Piping Conference
  • Volume 6B: Materials and Fabrication
  • Waikoloa, Hawaii, USA, July 16–20, 2017
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5800-4
  • Copyright © 2017 by ASME


Japan began constructing and upgrading HRS (Hydrogen Refueling Stations) for its FCV (Fuel Cell Vehicle) demonstration program in 2002, as shown in Fig. 1. In 2013, Japanese energy providers started constructing commercial HRS for refueling FCV with 70 MPa hydrogen, and almost 100 HRS are now in service. Maintaining the reliability of refueling equipment is essential for safe, stable operation of commercial HRS. However, as a result of experience with commercial HRS operation during the past few years, Japanese energy providers have recognized that maintenance for small leaks from cone and thread mechanical joints involves a significant loss of resources.

Copyright © 2017 by ASME



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