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Nucleation site interaction between artificial cavities during nucleate pool boiling on silicon with integrated micro-heater and temperature micro-sensors

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Title: Nucleation site interaction between artificial cavities during nucleate pool boiling on silicon with integrated micro-heater and temperature micro-sensors
Authors: Hutter, C.1, Sefiane, K.1 K.Sefiane@ed.ac.uk, Karayiannis, T.G.2, Walton, A.J.1, Nelson, R.A.3, Kenning, D.B.R.2
Source: International Journal of Heat & Mass Transfer. May2012, Vol. 55 Issue 11/12, p2769-2778. 10p.
Subjects: Detectors, Nucleation, Holes, Nucleate boiling, Silicon wafers, Stainless steel, Heat transfer, Pressure
Abstract: Abstract: Nucleate boiling is commonly characterised as a very complex and elusive process. Many involved mechanisms are still not fully understood and more detailed consideration is needed. In this study, bubble growth from micro-fabricated artificial cavities with varied spacing on a horizontal 380μm thick silicon wafer was investigated. The horizontally oriented boiling surface was heated by a thin resistance heater integrated on the rear of the silicon test section. The temperature was measured using 16 integrated micro-sensors situated on the boiling surface, each with an artificial cavity located in its geometrical centre. Experiments with three different spacings 1.5, 1.2 and 0.84mm in between cavities with a nominal mouth diameter of 10μm and a depth of 80μm were undertaken. To conduct pool boiling experiments, the test section was mounted inside a closed stainless steel boiling chamber with optical access and completely immersed in degassed fluorinert FC-72. Bubble nucleation, growth and detachment at 0.5 and 1bar absolute pressure were investigated using high-speed imaging. The effect of decreasing inter-site distance on bubble nucleation frequency, bubble departure frequency and diameter with increasing wall superheat is presented. Furthermore, the frequency of horizontal bubble coalescence was determined. The regions of influence on the measured frequencies and bubble departure diameter were compared with recently published findings. [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
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Header DbId: egs
DbLabel: Engineering Source
An: 74096873
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
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  Data: Nucleation site interaction between artificial cavities during nucleate pool boiling on silicon with integrated micro-heater and temperature micro-sensors
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  Data: <searchLink fieldCode="AR" term="%22Hutter%2C+C%2E%22">Hutter, C.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sefiane%2C+K%2E%22">Sefiane, K.</searchLink><relatesTo>1</relatesTo><i> K.Sefiane@ed.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Karayiannis%2C+T%2EG%2E%22">Karayiannis, T.G.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Walton%2C+A%2EJ%2E%22">Walton, A.J.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Nelson%2C+R%2EA%2E%22">Nelson, R.A.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Kenning%2C+D%2EB%2ER%2E%22">Kenning, D.B.R.</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Heat+%26+Mass+Transfer%22">International Journal of Heat & Mass Transfer</searchLink>. May2012, Vol. 55 Issue 11/12, p2769-2778. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Detectors%22">Detectors</searchLink><br /><searchLink fieldCode="DE" term="%22Nucleation%22">Nucleation</searchLink><br /><searchLink fieldCode="DE" term="%22Holes%22">Holes</searchLink><br /><searchLink fieldCode="DE" term="%22Nucleate+boiling%22">Nucleate boiling</searchLink><br /><searchLink fieldCode="DE" term="%22Silicon+wafers%22">Silicon wafers</searchLink><br /><searchLink fieldCode="DE" term="%22Stainless+steel%22">Stainless steel</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+transfer%22">Heat transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Pressure%22">Pressure</searchLink>
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  Label: Abstract
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  Data: Abstract: Nucleate boiling is commonly characterised as a very complex and elusive process. Many involved mechanisms are still not fully understood and more detailed consideration is needed. In this study, bubble growth from micro-fabricated artificial cavities with varied spacing on a horizontal 380μm thick silicon wafer was investigated. The horizontally oriented boiling surface was heated by a thin resistance heater integrated on the rear of the silicon test section. The temperature was measured using 16 integrated micro-sensors situated on the boiling surface, each with an artificial cavity located in its geometrical centre. Experiments with three different spacings 1.5, 1.2 and 0.84mm in between cavities with a nominal mouth diameter of 10μm and a depth of 80μm were undertaken. To conduct pool boiling experiments, the test section was mounted inside a closed stainless steel boiling chamber with optical access and completely immersed in degassed fluorinert FC-72. Bubble nucleation, growth and detachment at 0.5 and 1bar absolute pressure were investigated using high-speed imaging. The effect of decreasing inter-site distance on bubble nucleation frequency, bubble departure frequency and diameter with increasing wall superheat is presented. Furthermore, the frequency of horizontal bubble coalescence was determined. The regions of influence on the measured frequencies and bubble departure diameter were compared with recently published findings. [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.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.ijheatmasstransfer.2012.02.014
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 10
        StartPage: 2769
    Subjects:
      – SubjectFull: Detectors
        Type: general
      – SubjectFull: Nucleation
        Type: general
      – SubjectFull: Holes
        Type: general
      – SubjectFull: Nucleate boiling
        Type: general
      – SubjectFull: Silicon wafers
        Type: general
      – SubjectFull: Stainless steel
        Type: general
      – SubjectFull: Heat transfer
        Type: general
      – SubjectFull: Pressure
        Type: general
    Titles:
      – TitleFull: Nucleation site interaction between artificial cavities during nucleate pool boiling on silicon with integrated micro-heater and temperature micro-sensors
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            NameFull: Sefiane, K.
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            NameFull: Karayiannis, T.G.
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            NameFull: Walton, A.J.
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              M: 05
              Text: May2012
              Type: published
              Y: 2012
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              Value: 55
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              Value: 11/12
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            – TitleFull: International Journal of Heat & Mass Transfer
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