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Experimental pool boiling investigations of FC-72 on silicon with artificial cavities and integrated temperature microsensors

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Title: Experimental pool boiling investigations of FC-72 on silicon with artificial cavities and integrated temperature microsensors
Authors: Hutter, C.1, Kenning, D.B.R.2, Sefiane, K.1 K.Sefiane@ed.ac.uk, Karayiannis, T.G.2, Lin, H.3, Cummins, G.3, Walton, A.J.3
Source: Experimental Thermal & Fluid Science. May2010, Vol. 34 Issue 4, p422-433. 12p.
Subjects: Ebullition, Silicon, Microsensors, Temperature measurements, Nucleation, Heat flux, Bubbles, Scientific experimentation
Abstract: Abstract: In this experimental study, fluorinert FC-72 is boiled on a silicon chip with artificial cavities and integrated microsensors. The horizontal silicon chip with dimensions of 39.5×19×0.38mm is completely immersed in FC-72. The integrated nickel–titanium temperature microsensors on the back of the chip are calibrated individually and exhibit a near-linear increase of electrical resistance with temperature. The applied heat fluxes and the resulting wall superheat at the boiling surface are varied by means of an integral thin-film resistance heater (95% Al, 4% Cu and 1% Si), also on the back of the silicon chip. Artificial cylindrical cavities with a mouth diameter of 10μm and depths of 40, 80 or 100μm situated above the microthermometers serve as artificial nucleation sites, due to trapped vapour. Bubble growth rates, frequencies, departure diameters of bubbles and waiting times between bubbles from an isolated cavity for different wall superheats and pressures were obtained by analysing high-speed video images and the simultaneously measured temperature below the artificial cavity. [Copyright &y& Elsevier]
Copyright of Experimental Thermal & Fluid Science is the property of Elsevier B.V. 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: 48402852
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Experimental pool boiling investigations of FC-72 on silicon with artificial cavities and integrated temperature microsensors
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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="%22Kenning%2C+D%2EB%2ER%2E%22">Kenning, D.B.R.</searchLink><relatesTo>2</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="%22Lin%2C+H%2E%22">Lin, H.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Cummins%2C+G%2E%22">Cummins, G.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Walton%2C+A%2EJ%2E%22">Walton, A.J.</searchLink><relatesTo>3</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Experimental+Thermal+%26+Fluid+Science%22">Experimental Thermal & Fluid Science</searchLink>. May2010, Vol. 34 Issue 4, p422-433. 12p.
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  Data: <searchLink fieldCode="DE" term="%22Ebullition%22">Ebullition</searchLink><br /><searchLink fieldCode="DE" term="%22Silicon%22">Silicon</searchLink><br /><searchLink fieldCode="DE" term="%22Microsensors%22">Microsensors</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+measurements%22">Temperature measurements</searchLink><br /><searchLink fieldCode="DE" term="%22Nucleation%22">Nucleation</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+flux%22">Heat flux</searchLink><br /><searchLink fieldCode="DE" term="%22Bubbles%22">Bubbles</searchLink><br /><searchLink fieldCode="DE" term="%22Scientific+experimentation%22">Scientific experimentation</searchLink>
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  Data: Abstract: In this experimental study, fluorinert FC-72 is boiled on a silicon chip with artificial cavities and integrated microsensors. The horizontal silicon chip with dimensions of 39.5×19×0.38mm is completely immersed in FC-72. The integrated nickel–titanium temperature microsensors on the back of the chip are calibrated individually and exhibit a near-linear increase of electrical resistance with temperature. The applied heat fluxes and the resulting wall superheat at the boiling surface are varied by means of an integral thin-film resistance heater (95% Al, 4% Cu and 1% Si), also on the back of the silicon chip. Artificial cylindrical cavities with a mouth diameter of 10μm and depths of 40, 80 or 100μm situated above the microthermometers serve as artificial nucleation sites, due to trapped vapour. Bubble growth rates, frequencies, departure diameters of bubbles and waiting times between bubbles from an isolated cavity for different wall superheats and pressures were obtained by analysing high-speed video images and the simultaneously measured temperature below the artificial cavity. [Copyright &y& Elsevier]
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  Data: <i>Copyright of Experimental Thermal & Fluid Science is the property of Elsevier B.V. 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: 10.1016/j.expthermflusci.2009.03.010
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      – Code: eng
        Text: English
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        PageCount: 12
        StartPage: 422
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      – SubjectFull: Silicon
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      – SubjectFull: Microsensors
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      – SubjectFull: Temperature measurements
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      – SubjectFull: Nucleation
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      – SubjectFull: Heat flux
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      – SubjectFull: Bubbles
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      – SubjectFull: Scientific experimentation
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      – TitleFull: Experimental pool boiling investigations of FC-72 on silicon with artificial cavities and integrated temperature microsensors
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              Text: May2010
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