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Enhancement of HFE-...
Enhancement of HFE-7200 pool boiling heat transfer on copper surfaces with nanoparticle coatings
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- Cao, Zhen (author)
- University of Twente, Netherlands
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- Wu, Zan (author)
- Department of Energy Sciences, Lund University, P.O. Box 118, Lund, SE-22100, Sweden
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- Pham, Anh Duc (author)
- Malmö universitet,Institutionen för biomedicinsk vetenskap (BMV),Department of Energy Sciences, Lund University, P.O. Box 118, Lund, SE-22100, Sweden
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- Preger, Calle (author)
- Solid State Physics and NanoLund, Lund University, Lund, Sweden
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- Ruzgas, Tautgirdas (author)
- Malmö universitet,Institutionen för biomedicinsk vetenskap (BMV)
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- Albèr, Cathrine (author)
- Malmö universitet,Institutionen för biomedicinsk vetenskap (BMV)
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- Abbood, Sahar A. (author)
- Department of Energy Sciences, Lund University, P.O. Box 118, Lund, SE-22100, Sweden
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- Sunden, Bengt (author)
- BS Heat Transfer and Fluid Flow
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University of Twente, Netherlands Department of Energy Sciences, Lund University, PO. Box 118, Lund, SE-22100, Sweden (creator_code:org_t)
- Connecticut : Begell House, 2018
- 2018
- English.
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In: International Heat Transfer Conference 16. - Connecticut : Begell House. - 9781567004748 - 9781567004731 ; , s. -1347
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Saturated pool boiling heat transfer of HFE-7200 is investigated experimentally on copper surfaces with nanoparticle coatings at atmospheric pressure. The coatings are generated by an electrophoretic deposition method. Two modified surfaces are prepared with Cu-Zinc nanoparticles of 0.3 mg and 0.6 mg, respectively. During the deposition, ethanol works as the solvent while the electrical potential and deposition time are controlled as 9.5 V and 30 min, respectively. The experimental results show heat transfer is considerably enhanced by the nanoparticle coatings. The surface with 0.6 mg nanoparticles (EDS-2) performs better than the surface with 0.3 mg nanoparticles (EDS-1), and a maximum 140% heat transfer enhancement is achieved on the surface EDS-2 compared with the SS. However, the critical heat flux is not enhanced by the coatings but even slightly decreased. A high speed visualization is employed to capture bubble behavior. It is found that bubbles on EDS-1 and EDS-2 have smaller sizes and higher departure frequency than those on the SS before reaching the critical heat flux. However, at critical heat fluxes, a vapor blanket appears on all surfaces.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Keyword
- Dielectric liquid
- Pool boiling
- Nanoparticle coating
Publication and Content Type
- ref (subject category)
- kon (subject category)
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