Journal of the Hydrogen Energy Systems Society of Japan
Online ISSN : 2436-5599
Print ISSN : 1341-6995
Volume 18, Issue 1
Displaying 1-6 of 6 articles from this issue
  • Katsuya GOTO, Takaaki FUNAKOSHI, Kenichi HAYASHI, Manabu NARA, Toshiya ...
    1993 Volume 18 Issue 1 Pages 10-15
    Published: 1993
    Released on J-STAGE: July 21, 2022
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS

    As the problem of the low and intermittent energy density of solar energy is solved with changed solar energy into hydrogen energy, it is important for advancing of energy conversion efficiency in a system that the matching of the highest working condition of the energy conversion equipment. In this paper, it required that the characteristic of solar generator and the condition searched for improvement of energy conversion efficiency from solar energy to hydrogen energy when the system operated all day long.

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  • Seijiro Ihara, Seiji Wakamatsu, Ryuji Kanatake, Jou Suzuki, Tokio Ohta
    1993 Volume 18 Issue 1 Pages 16-23
    Published: 1993
    Released on J-STAGE: July 21, 2022
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS

    The cost of liquid hydrogen from water electrolysis is estimated assuming the electricity is produced from photovoltaic power plant located in an overseas desert. The assumed system consists of the plants of solar cells, storage batteries, seawater desalination, water electrolysis, hydrogen liquefaction, liquid hydrogen holders, and ocean cryo-tankers. The calculated CIF price of liquid hydrogen is compared with that of the fossil fuels. Effect of carbon tax on the break-even point of the price of hydrogen is briefly discussed.

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