View in EDS

Numerical investigation of nucleate boiling heat transfer on thin substrates.

Saved in:
Bibliographic Details
Title: Numerical investigation of nucleate boiling heat transfer on thin substrates.
Authors: Sanna, A.1, Hutter, C.2, Kenning, D.B.R.1, Karayiannis, T.G.1 tassos.karayiannis@brunel.ac.uk, Sefiane, K.2, Nelson, R.A.3
Source: International Journal of Heat & Mass Transfer. Sep2014, Vol. 76, p45-64. 20p.
Subjects: Nucleate boiling, Heat transfer, Substrates (Materials science), Thin films, Computer simulation, Coalescence (Chemistry), Nucleation
Abstract: Abstract: The objective of this paper is to define the guidelines for the design of new boiling test sections with a large number of artificial nucleation sites during nucleate boiling for thin substrates horizontally immersed in a saturated liquid with artificial cavities located on the upper surface. The findings of numerical simulations of pool boiling heat transfer for a single bubble and for a large number of nucleation sites based on the analysis of experimental cases were analysed. Dedicated test sections were used in experiments for the study of boiling mechanisms and interactions between active sites so that the numerical models representing the physics of the problem could be improved. The hybrid nature of the code used in this study, combining the complete solution of the three-dimensional time-dependent energy equation in the solid substrate with semi-empirical models representing the physical phenomena occurring in the liquid side, in a simplified way, allows a large number of simulations in a reasonable computational time. The present paper focuses in the first part on the capability of the model to reproduce the experimental results for various conditions, while in the second part, the results for a large number of nucleation sites are analysed. Regarding the single bubble growth, two series of simulations will be presented in this paper: the first one analyses the mechanisms of nucleate boiling on a silicon substrate immersed in the dielectric fluid FC-72. The second series studies the behaviour of bubbles on metallic substrates, platinum and titanium, in saturated water. In the last section, the effect of the position of a site during simulations of a large population of sites (of the order of 100) on the waiting time, growth time, type and occurrence of coalescence and the thermal characteristics is presented. [Copyright &y& Elsevier]
Copyright of International Journal of Heat & Mass Transfer is the property of Pergamon Press - An Imprint of Elsevier Science 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
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 96448989
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Numerical investigation of nucleate boiling heat transfer on thin substrates.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Sanna%2C+A%2E%22">Sanna, A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hutter%2C+C%2E%22">Hutter, C.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Kenning%2C+D%2EB%2ER%2E%22">Kenning, D.B.R.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Karayiannis%2C+T%2EG%2E%22">Karayiannis, T.G.</searchLink><relatesTo>1</relatesTo><i> tassos.karayiannis@brunel.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Sefiane%2C+K%2E%22">Sefiane, K.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Nelson%2C+R%2EA%2E%22">Nelson, R.A.</searchLink><relatesTo>3</relatesTo>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Heat+%26+Mass+Transfer%22">International Journal of Heat & Mass Transfer</searchLink>. Sep2014, Vol. 76, p45-64. 20p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Nucleate+boiling%22">Nucleate boiling</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+transfer%22">Heat transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Substrates+%28Materials+science%29%22">Substrates (Materials science)</searchLink><br /><searchLink fieldCode="DE" term="%22Thin+films%22">Thin films</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Coalescence+%28Chemistry%29%22">Coalescence (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Nucleation%22">Nucleation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: The objective of this paper is to define the guidelines for the design of new boiling test sections with a large number of artificial nucleation sites during nucleate boiling for thin substrates horizontally immersed in a saturated liquid with artificial cavities located on the upper surface. The findings of numerical simulations of pool boiling heat transfer for a single bubble and for a large number of nucleation sites based on the analysis of experimental cases were analysed. Dedicated test sections were used in experiments for the study of boiling mechanisms and interactions between active sites so that the numerical models representing the physics of the problem could be improved. The hybrid nature of the code used in this study, combining the complete solution of the three-dimensional time-dependent energy equation in the solid substrate with semi-empirical models representing the physical phenomena occurring in the liquid side, in a simplified way, allows a large number of simulations in a reasonable computational time. The present paper focuses in the first part on the capability of the model to reproduce the experimental results for various conditions, while in the second part, the results for a large number of nucleation sites are analysed. Regarding the single bubble growth, two series of simulations will be presented in this paper: the first one analyses the mechanisms of nucleate boiling on a silicon substrate immersed in the dielectric fluid FC-72. The second series studies the behaviour of bubbles on metallic substrates, platinum and titanium, in saturated water. In the last section, the effect of the position of a site during simulations of a large population of sites (of the order of 100) on the waiting time, growth time, type and occurrence of coalescence and the thermal characteristics is presented. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Heat & Mass Transfer is the property of Pergamon Press - An Imprint of Elsevier Science 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=96448989
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.ijheatmasstransfer.2014.04.026
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 20
        StartPage: 45
    Subjects:
      – SubjectFull: Nucleate boiling
        Type: general
      – SubjectFull: Heat transfer
        Type: general
      – SubjectFull: Substrates (Materials science)
        Type: general
      – SubjectFull: Thin films
        Type: general
      – SubjectFull: Computer simulation
        Type: general
      – SubjectFull: Coalescence (Chemistry)
        Type: general
      – SubjectFull: Nucleation
        Type: general
    Titles:
      – TitleFull: Numerical investigation of nucleate boiling heat transfer on thin substrates.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Sanna, A.
      – PersonEntity:
          Name:
            NameFull: Hutter, C.
      – PersonEntity:
          Name:
            NameFull: Kenning, D.B.R.
      – PersonEntity:
          Name:
            NameFull: Karayiannis, T.G.
      – PersonEntity:
          Name:
            NameFull: Sefiane, K.
      – PersonEntity:
          Name:
            NameFull: Nelson, R.A.
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 09
              Text: Sep2014
              Type: published
              Y: 2014
          Identifiers:
            – Type: issn-print
              Value: 00179310
          Numbering:
            – Type: volume
              Value: 76
          Titles:
            – TitleFull: International Journal of Heat & Mass Transfer
              Type: main
ResultId 1