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An analysis of pool...
An analysis of pool boiling heat transfer on nanoparticle-coated surfaces
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- Cao, Zhen (författare)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Värmeöverföring,Institutionen för energivetenskaper,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Heat Transfer,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH
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- Wu, Zan (författare)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Värmeöverföring,Institutionen för energivetenskaper,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Heat Transfer,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH
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- Abdul Fattah Abood, Sahar (författare)
- Lund University,Lunds universitet,Värmeöverföring,Institutionen för energivetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Heat Transfer,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH
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- Sundén, Bengt (författare)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Värmeöverföring,Institutionen för energivetenskaper,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Heat Transfer,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
- Elsevier BV, 2019
- 2019
- Engelska 7 s.
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Ingår i: Energy Procedia. - : Elsevier BV. - 1876-6102. ; 159, s. 5880-5887
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In the present study, copper surfaces were deposited with Cu-Zinc nanoparticles of 0.6 mg by an electrophoretic deposition method (EPD). Two deposition patterns were designed, i.e., fully deposition (EPD-F) and channel-pattern deposition (EPD-C). In the channel-pattern deposition, the smooth channel and the deposition channel occur alternatively, by keeping the width of the smooth channel as 3 mm, but the width of the deposition channel as 1 mm (EPD-C1) and 3 mm (EPD-C2), respectively. Pool boiling of HFE-7200 was studied on a smooth surface and the nanoparticle-coating surfaces. The results showed that the surface with fully deposition (EPD-F) had the highest heat transfer coefficient, around 100% enhancement compared with the smooth surface, while the surface with channel-pattern deposition (EPD-C2) had the highest critical heat flux, around 33.3% enhancement in comparison to the smooth surface. A high speed camera was used to study bubble dynamics, which indicated that the nanoparticle-coating surfaces had smaller bubble departure diameters and higher departure frequencies. A heat transfer model, considering natural convection, re-formation of thermal boundary layer and microlayer evaporation, was formulated to predict the heat transfer on the test surfaces, showing good prediction at low and moderate heat fluxes. CHF was analyzed from the perspective of the Rayleigh-Taylor instability.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Nyckelord
- pool boiling
- Heat transer
- Nanoparticles
- Bubble dynamics
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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