Journal of the Hydrogen Energy Systems Society of Japan
Online ISSN : 2436-5599
Print ISSN : 1341-6995
Volume 25, Issue 2
Displaying 1-12 of 12 articles from this issue
  • Masaru YATABE
    2000 Volume 25 Issue 2 Pages 2-7
    Published: 2000
    Released on J-STAGE: July 21, 2022
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS

    Hydrogen energy R&D has been proceeding since the First Oil Crisis in 1973 to introduce hydrogen into conventional energy system. Further, global environmental problem elevated concerns hydrogen energy and R&D to open up avenues of use hydrogen energy has been progressing actively. Details of each hydrogen supply technologies will be explained by person respectively, therefore. I would like to explain the outline of hydrogen supply system in general.

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  • Itsuki UEHARA
    2000 Volume 25 Issue 2 Pages 8-18
    Published: 2000
    Released on J-STAGE: July 21, 2022
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS

    Metal hydrides which reversibly absorb and desorb hydrogen at ambient temperature and moderate pressure, so-called “hydrogen-absorbing alloys”, and their application to hydrogen storage systems have been extensively studied since the early 1970s. Under rising concerns about energy and environment problems, the research and development of this technological field has been intensified, especially toward the effective utilization for fuel cell vehicles. This paper briefly gives a personal review of hydrogen storage technologies using meta hydrides and other media.

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  • Takuji HANADA
    2000 Volume 25 Issue 2 Pages 19-29
    Published: 2000
    Released on J-STAGE: July 21, 2022
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS

    The special number issue entitled “Storage and Transportation of Hydrogen” explains in detail the production, storage, and transportation of liquid hydrogen. The article includes purification process to liquefying hydrogen, ortho-para conversion process, liquefaction process and a thermal insulation method to store liquid hydrogen at a cryogenic temperature, as well as various transportation systems in service in the world.

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  • [in Japanese]
    2000 Volume 25 Issue 2 Pages 30-35
    Published: 2000
    Released on J-STAGE: July 21, 2022
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS

    Hydrogen has been stored as a pressurized gas in high-pressure gas vessels since the beginning of the20th century. The main reason for pressurizing hydrogen is that when it is pressurized its apparent volume becomes smaller, making storage and transportation more convenient. Recently lightweight composites vessels developed to meet the need for tank of compressed hydrogen gas to be used as fuel for motor vehicles. This paper is concerned with pressurization and storage of hydrogen. It covers matters trend of standardization and safety point for using composite vessels, technical developments affecting storage vessels, and actual examples of pressurized hydrogen storage.

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  • Shinya HODOSHIMA, Yasukazu SAITO
    2000 Volume 25 Issue 2 Pages 36-43
    Published: 2000
    Released on J-STAGE: July 21, 2022
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS

    A decalin dehydrogenation/Naphthalene hydrogenation pair has been proposed as a effective hydrogen carrier, in which catalytic decalin dehydrogeno-aromatization takes an essential role under reactive distillation conditions with waste heats (around 200℃) Carbon-supported platinum-based catalysts in the liquid-film states gave one-pass conversions of decalin into hydrogen and naphthalene, exceeding the limit of chemica equilibrium with irrespective of naphthalene content in the decalin solution. In this paper we emphasized the advantages of this decalin/naphthalene system for long-term storag and long-distance transportation of hydrogen superior to other systems from the viewpoints of hydrogen contents and required exergies.

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  • Katsumi YOSHIDA, Hiro YOSHIDA
    2000 Volume 25 Issue 2 Pages 44-48
    Published: 2000
    Released on J-STAGE: July 21, 2022
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS

    This paper describes Island’s challenge toward the world’s first hydrogen society. The small country in the North Atlantic has established a joint venture (JV) named “Icelandic New Energy Ltd” to investigate the potential for replacing the use of fossil fuels with hydrogen. As the first phase of the project, a demonstration project with 3 PEMFC-powered buses is planned in its capital city. The JV also plans to replace all the vehicles and the fishing vessels with fuel cell powered ones by around 2030-2040. The final goal, the transformation into hydrogen society, is expected to lead to economic prosperity of this small country.

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