Journal of High Pressure Institute of Japan
Online ISSN : 1347-9598
Print ISSN : 0387-0154
ISSN-L : 0387-0154
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Volume 56, Issue 1
Displaying 1-4 of 4 articles from this issue
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Review
  • Tide of Equipment Engineering in Oil Refining and Chemical Industry
    Yoichi ISHIZAKI
    2018 Volume 56 Issue 1 Pages 4-20
    Published: January 25, 2018
    Released on J-STAGE: February 09, 2018
    DOIhttps://doi.org/10.11181/hpi.56.4
    JOURNAL FREE ACCESS
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    Product Lifecycle Management is an idea to help the business optimization in accordance with the life stage of the product. In this article, the history of ASME and API codes related to the equipment engineering is reviewed and compared with the energy consumption historical data to illustrate the product life cycle stage of the oil and chemical industry in U. S. A. and Japan. Looking at the overall picture of those data, it indicates there has been a good concurrence between the ASME⁄API code history and the life cycle stage of market. This will gives us a light to find the next step of the equipment engineering in those industries. Based on this observation, the article suggests the potential improvement opportunity of the equipment engineering technology in Japanese oil and chemical industry as well.
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  • Measurement and FFS assessment of corroded pipes using a three-dimensional measurement tool
    Minoru NIIMURA
    2018 Volume 56 Issue 1 Pages 21-25
    Published: January 25, 2018
    Released on J-STAGE: February 09, 2018
    DOIhttps://doi.org/10.11181/hpi.56.21
    JOURNAL FREE ACCESS
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    This article introduces examples of the measurement of corrosion occurred on pipes, using a three dimensional, optical measurement tool. Evaluation is performed by a software based on WES2820: 2015 (FFS (Fitness-For-Service) ) standard, issued by The Japan Welding Engineering Society in 2015.
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Original Paper
  • Estimation about bolt tension under repeated tightening by using hydraulic tensioner
    Yohei TANNO, Tomohiro NARUSE
    2018 Volume 56 Issue 1 Pages 26-36
    Published: January 25, 2018
    Released on J-STAGE: February 09, 2018
    DOIhttps://doi.org/10.11181/hpi.56.26
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    This paper shows the analytical and experimental results of pretension reduction for a bolted joint repeatedly tightened by a hydraulic tensioner. Pressure vessels, such as a compressor and pump, are strongly tightened by bolted joints using a hydraulic tensioner. The hydraulic tensioner can apply higher value and lower variation of axial tension than torque tightening. However, the axial tension remaining in the bolt is less than the initial tension by the hydraulic load, and the ratio of residual tension to initial tension, effective tensile coefficient, is the most important factor to tighten the pressure vessel securely. The pressure vessels are repeatedly tightened by the hydraulic tensioner for a pressure test and periodic maintenance. The effective tensile coefficient varies under repeated tightening because of settling and work hardening of yield deformation on bearing surface. We developed several equations for estimating the effective tensile coefficient under repeated tightening by considering settling and yield depression on bearing surface. Moreover, finite element analyses of repeated hydraulic tightening procedure were carried out by taking settling on bearing surface and hardening plasticity material into consideration. Then repeated tightening with hydraulic tensioner was experimented for verifying the accuracy of the analysis. As a result, it was clarified that the effective tensile coefficient in the 2nd joint was larger than that in the 1st joint by decreasing deformation of setting and yield depression on bearing surface. It was confirmed that presented analysis methods could estimate the effective tensile coefficient under repeated tightening accurately.
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Review
  • Petroleum Facilities Damages in Texas, USA caused by Hurricane Harvey
    Shoichi YOSHIDA
    2018 Volume 56 Issue 1 Pages 37-48
    Published: January 25, 2018
    Released on J-STAGE: February 09, 2018
    DOIhttps://doi.org/10.11181/hpi.56.37
    JOURNAL FREE ACCESS
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    Hurricane Harvey made landfall late night on August 25, 2017 at the southeastern Texas Gulf Coast as a category 4. After striking land, Harvey was downgraded to a tropical storm on next day afternoon. Its moving became slow. Nevertheless, Harvey was producing heavy rain across the Greater Houston area, which had led to significant flooding. Many locations in the Greater Houston area observed over 1 m in total rainfall. Houston is a hub of the U. S. petroleum industry and many oil refineries, tank terminals and chemical plants are located. These facilities suffered severe damage from Harvey. This paper presents the damages of petroleum facilities caused by Harvey. These are external floating roof sinking incidents of aboveground storage tanks, a power supply loss in a chemical plant, floating and overturning of small crude oil storage tanks, a shutdown of the Colonial Pipeline and emergency exchanges of the Strategic Petroleum Reserve.
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