View in EDS HTML Full Text PDF Full Text

Failure analysis and durability of preinsulating district heat pipes.

Saved in:
Bibliographic Details
Title: Failure analysis and durability of preinsulating district heat pipes.
Authors: Puentes‐Parodi, Alejandro1,2, Gehde, Michael2, Leuteritz, Andreas1, Kuehnert, Ines1 kuehnert@ipfdd.de
Source: Polymers for Advanced Technologies. Mar2018, Vol. 29 Issue 3, p1048-1055. 8p.
Subjects: Polyurethanes, Heat pipes, Thermogravimetry, Surface analysis, Chemical decomposition, Failure analysis
Abstract: In this work, surface analysis and failure of rigid polyurethane (PUR) near to the metal interface of an insulating district heat pipe were evaluated. The hybrid composite consists of a steel tube surrounded by a rigid and thick PUR layer for thermal isolation. Accurate life spam approximation of district heat pipes based on PUR and steel is a complex task because of a number of variables involved in the service life of the composite, such as corrosion on the metal pipe, unexpected variations in humidity and temperature, and the quality of raw materials. In this work, artificial aging, mechanical tests, thermogravimetric, and surface analysis were conducted to determine the failure mechanisms at the polymer‐metal interface. From thermogravimetric data, different methods were applied to identify parameters of the kinetics of solid decomposition, and subsequently, the lifetime of the product was estimated. From the methods evaluated, the Chang analysis gave the best approach when compared to results attained by mechanical tests and predictions established by the standard EN 253. [ABSTRACT FROM AUTHOR]
Copyright of Polymers for Advanced Technologies is the property of Wiley-Blackwell 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.)
Database: Engineering Source
Full text is not displayed to guests.
FullText Links:
  – Type: pdflink
Text:
  Availability: 1
Header DbId: egs
DbLabel: Engineering Source
An: 127932787
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Failure analysis and durability of preinsulating district heat pipes.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Puentes‐Parodi%2C+Alejandro%22">Puentes‐Parodi, Alejandro</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Gehde%2C+Michael%22">Gehde, Michael</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Leuteritz%2C+Andreas%22">Leuteritz, Andreas</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kuehnert%2C+Ines%22">Kuehnert, Ines</searchLink><relatesTo>1</relatesTo><i> kuehnert@ipfdd.de</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Polymers+for+Advanced+Technologies%22">Polymers for Advanced Technologies</searchLink>. Mar2018, Vol. 29 Issue 3, p1048-1055. 8p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Polyurethanes%22">Polyurethanes</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+pipes%22">Heat pipes</searchLink><br /><searchLink fieldCode="DE" term="%22Thermogravimetry%22">Thermogravimetry</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+analysis%22">Surface analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+decomposition%22">Chemical decomposition</searchLink><br /><searchLink fieldCode="DE" term="%22Failure+analysis%22">Failure analysis</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this work, surface analysis and failure of rigid polyurethane (PUR) near to the metal interface of an insulating district heat pipe were evaluated. The hybrid composite consists of a steel tube surrounded by a rigid and thick PUR layer for thermal isolation. Accurate life spam approximation of district heat pipes based on PUR and steel is a complex task because of a number of variables involved in the service life of the composite, such as corrosion on the metal pipe, unexpected variations in humidity and temperature, and the quality of raw materials. In this work, artificial aging, mechanical tests, thermogravimetric, and surface analysis were conducted to determine the failure mechanisms at the polymer‐metal interface. From thermogravimetric data, different methods were applied to identify parameters of the kinetics of solid decomposition, and subsequently, the lifetime of the product was estimated. From the methods evaluated, the Chang analysis gave the best approach when compared to results attained by mechanical tests and predictions established by the standard EN 253. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Polymers for Advanced Technologies is the property of Wiley-Blackwell 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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=127932787
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1002/pat.4216
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 8
        StartPage: 1048
    Subjects:
      – SubjectFull: Polyurethanes
        Type: general
      – SubjectFull: Heat pipes
        Type: general
      – SubjectFull: Thermogravimetry
        Type: general
      – SubjectFull: Surface analysis
        Type: general
      – SubjectFull: Chemical decomposition
        Type: general
      – SubjectFull: Failure analysis
        Type: general
    Titles:
      – TitleFull: Failure analysis and durability of preinsulating district heat pipes.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Puentes‐Parodi, Alejandro
      – PersonEntity:
          Name:
            NameFull: Gehde, Michael
      – PersonEntity:
          Name:
            NameFull: Leuteritz, Andreas
      – PersonEntity:
          Name:
            NameFull: Kuehnert, Ines
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 03
              Text: Mar2018
              Type: published
              Y: 2018
          Identifiers:
            – Type: issn-print
              Value: 10427147
          Numbering:
            – Type: volume
              Value: 29
            – Type: issue
              Value: 3
          Titles:
            – TitleFull: Polymers for Advanced Technologies
              Type: main
ResultId 1