Journal of High Pressure Institute of Japan
Online ISSN : 1347-9598
Print ISSN : 0387-0154
ISSN-L : 0387-0154
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Volume 61, Issue 4
Displaying 1-3 of 3 articles from this issue
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Review
  • Incidents of Storage Facilities for Energy Products Occurred Overseas in the Second Half of 2022
    Shoichi YOSHIDA
    2023 Volume 61 Issue 4 Pages 160-172
    Published: 2023
    Released on J-STAGE: August 27, 2023
    DOIhttps://doi.org/10.11181/hpi.61.160
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    The author has reported incidents of storage facilities for energy products at the EST-1 Committee of High Pressure Institute of Japan. The information was obtained from the internet when the incidents occurred. In this paper, 40 incidents of storage facilities for energy products which occurred overseas in the second half of 2022 are reported.
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  • Leak Mechanism on High Temperature High Pressure Pipe Flange with Insulation
    Shinichiro KANAMARU, Yoshiaki UNO
    2023 Volume 61 Issue 4 Pages 173-177
    Published: 2023
    Released on J-STAGE: August 27, 2023
    DOIhttps://doi.org/10.11181/hpi.61.173
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    Flange connection is widely utilized to connect piping, fittings and valves in chemical, refinery and petrochemical industry. However, leakage incidents from gasket surface have been happening at bolted flange connections. The authors experienced an incident that the existence of insulation, which is used to reduce heat loss of process fluids in piping, affected leakage at high temperature-high pressure (HT-HP) piping flange connection. In this paper, leakage mechanism with insulation at HT-HP piping flange connection is explained from the point of view of bolt tension calculated using finite element analysis and relaxation. Consequently, it is recommended that insulation not be used for HT-HP piping flange connection, and a weather seal or a personal protection be used instead.
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Essays
  • High Pressure Technology and Trans-disciplinary Education for Science and Engineering
    Kunio TAKAHASHI
    2023 Volume 61 Issue 4 Pages 178-183
    Published: 2023
    Released on J-STAGE: August 27, 2023
    DOIhttps://doi.org/10.11181/hpi.61.178
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    Based on authors experience, high-pressure technology and trans-disciplinary education for science and engineering are expressed focusing on fundamental academic fields. The author has been working in the editorial committee for the journal of High Pressure Institute of Japan from 1997, and also in Tokyo Institute of Technology for the education of science and engineering from 1990. The high-pressure technology is based on almost all of academic fields, in the same manner as other technology. Recently, trans-disciplinary education has been more significant corresponding to the paradigm shift of technology due to the drastic change in the social situation, such as Russian invasion to Ukraine, carbon neutral policy of governments, etc.. Also example of trans-disciplinary education in Tokyo Institute of Technology is introduced with its evolution and future vision.
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