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Issues and solutions for integrity of pressure vessels and piping subjected to long-term creep exposure in supercritical thermal plants.

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Title: Issues and solutions for integrity of pressure vessels and piping subjected to long-term creep exposure in supercritical thermal plants.
Authors: Lee, Hyeong-Yeon1 (AUTHOR) hylee@kaeri.re.kr, Lee, Jewhan1 (AUTHOR)
Source: Materials at High Temperatures. Nov2022, Vol. 39 Issue 6, p436-445. 10p.
Subjects: Pressure vessels, Pressurized water reactors, Power plants
Abstract: ASME BPVC Section VIII Division 2 ('ASME VIII(2)') and ASME B31.1 are being used not only for low-temperature design but also for high-temperature design in the creep range in supercritical thermal power plants. However, creep effects in ASME VIII(2) and B31.1 are taken into account implicitly, and there could be significant technical issues in terms of conservatism in the case of long-term operation in the creep range because their design evaluation results do not change across plant operation time. The conservatisms of ASME VIII(2) and B31.1 have been quantified based on comparisons with nuclear-grade design rules of ASME BPVC Section III Division 5 and RCC-MRx which take creep hold time into account explicitly. It was shown that ASME VIII(2) and B31.1 results could be non-conservative if operation time exceeds a certain time limit, which raises concerns around non-conservatism in the case of long-term operation within the creep range. [ABSTRACT FROM AUTHOR]
Copyright of Materials at High Temperatures is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 160240672
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  Data: Issues and solutions for integrity of pressure vessels and piping subjected to long-term creep exposure in supercritical thermal plants.
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  Data: <searchLink fieldCode="AR" term="%22Lee%2C+Hyeong-Yeon%22">Lee, Hyeong-Yeon</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> hylee@kaeri.re.kr</i><br /><searchLink fieldCode="AR" term="%22Lee%2C+Jewhan%22">Lee, Jewhan</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Materials+at+High+Temperatures%22">Materials at High Temperatures</searchLink>. Nov2022, Vol. 39 Issue 6, p436-445. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Pressure+vessels%22">Pressure vessels</searchLink><br /><searchLink fieldCode="DE" term="%22Pressurized+water+reactors%22">Pressurized water reactors</searchLink><br /><searchLink fieldCode="DE" term="%22Power+plants%22">Power plants</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: ASME BPVC Section VIII Division 2 ('ASME VIII(2)') and ASME B31.1 are being used not only for low-temperature design but also for high-temperature design in the creep range in supercritical thermal power plants. However, creep effects in ASME VIII(2) and B31.1 are taken into account implicitly, and there could be significant technical issues in terms of conservatism in the case of long-term operation in the creep range because their design evaluation results do not change across plant operation time. The conservatisms of ASME VIII(2) and B31.1 have been quantified based on comparisons with nuclear-grade design rules of ASME BPVC Section III Division 5 and RCC-MRx which take creep hold time into account explicitly. It was shown that ASME VIII(2) and B31.1 results could be non-conservative if operation time exceeds a certain time limit, which raises concerns around non-conservatism in the case of long-term operation within the creep range. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Materials at High Temperatures is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1080/09603409.2022.2041847
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      – Code: eng
        Text: English
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        PageCount: 10
        StartPage: 436
    Subjects:
      – SubjectFull: Pressure vessels
        Type: general
      – SubjectFull: Pressurized water reactors
        Type: general
      – SubjectFull: Power plants
        Type: general
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      – TitleFull: Issues and solutions for integrity of pressure vessels and piping subjected to long-term creep exposure in supercritical thermal plants.
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              M: 11
              Text: Nov2022
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