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Newsletter  2012.4  Index

Theme : "Hydrogen Flow"  

  1. Preface
    (M. Ogino, H. Hamakawa, K. Morimoto)
  2. Integrated Computational Study of Atomization Process of Liquid Hydrogen Pin-Hall Leakage Jet
    Jun ISHIMOTO (Tohoku University)
  3. Experimental study on hydrogen dispersion
    Masahiro INOUE (Kyushu University)
  4. Fundamental Characteristics for Open-Jet Flame of High-Pressurized Hydrogen
    Keiji TAKENO (Mitsubishi Heavy Industries, Ltd., Nagasaki R&D Center)
  5. Numerical Simulation of Leaking Hydrogen Dispersion
    Kazuo Matsuura (Ehime University)

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Experimental study on hydrogen dispersion

Masahiro INOUE
Department of Earth Resources Engineering, Kyushu University


The experimental studies that actually uses hydrogen are few though many computer simulations concerning the hydrogen dispersion are published. The simulation is very useful today, however, sometimes the experiments may be more suitable method to figure out some new facts. Therefore, the experimental studies are being done related to the hydrogen dispersion. If there is information from the simulation before the experiments, for examples, the sensor arrangement can be prepared effectively in advance for the experiment and the reliability will be improved and vice versa. The author is convinced that the experiment and the simulation mutually compensate each other. The several results of the experiments on the hydrogen dispersion will be described in the report.

Key words

Hydrogen dispersion, Experimental study, Safety

Fig. Hydrogen concentration under the ceiling.

Last update: 4.9.2012