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DC Field | Value | Language |
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dc.citation.endPage | 1766 | - |
dc.citation.number | 8 | - |
dc.citation.startPage | 1756 | - |
dc.citation.title | PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | - |
dc.citation.volume | 212 | - |
dc.contributor.author | Cheedarala, Ravi Kumar | - |
dc.contributor.author | Park, Eun Ju | - |
dc.contributor.author | Park, Young-Bin | - |
dc.contributor.author | Park, Hyung Wook | - |
dc.date.accessioned | 2023-12-22T01:06:48Z | - |
dc.date.available | 2023-12-22T01:06:48Z | - |
dc.date.created | 2015-03-24 | - |
dc.date.issued | 2015-08 | - |
dc.description.abstract | Copper oxide nanoparticles nanofluids (CuO-NPs-NF) are promising candidates for pool boiling critical heat flux (CHF) applications due to their multifaceted advantages like easy tunability, eco-friendliness, cost-effectiveness, easy chemical modification and higher thermal conductivities. In addition, entrapping the CuO-NPs in/on to graphene oxide (GO) improves the CHF values compared to CuO-NPs alone. This paper reports a high performance hybrid NFs based on CuO and GO nanocomposites (CuO:GO-NCs-NFs), exhibiting higher pool boiling CHF values even at very low concentrations. The proposed novel NFs have higher thermal conductivities compared with the DI water. The 0.06wt% CuO:GO-NCs-NF shows the highest CHF value, ca.160%, which is much higher than that of pure CuO-NPs-NF (99%). Atomic force microscope (AFM) and field-emission SEM (FE-SEM) micrographs of the wire after the pool boiling experiments revealed a rough surface having high wettability and lower contact angle (CA) with 47° due to the formation of a layer-on-layer network on the wire surface. In addition, we have developed a method for in situ generation of core-shell template model CuO-NPs using Ostwald's ripening method in isopropanol-water system. Eventually, the CuO:GO-NCs-NF could show robust and high performance CHF pool boiling even at low concentrations that are required in realistic applications. Schematic illustration of pool boiling CHF values of CuO-NPs and CuO:GO-NCs on nichrome wire surface. (a) Built-up layer roughness average by atomic force microscope (AFM) and (b) FEM-SEM. (c) comparison of pool boiling CHF experiment | - |
dc.identifier.bibliographicCitation | PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, v.212, no.8, pp.1756 - 1766 | - |
dc.identifier.doi | 10.1002/pssa.201431858 | - |
dc.identifier.issn | 1862-6300 | - |
dc.identifier.scopusid | 2-s2.0-84938949518 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/10982 | - |
dc.identifier.url | http://onlinelibrary.wiley.com/doi/10.1002/pssa.201431858/abstract | - |
dc.identifier.wosid | 000359382400017 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Highly wettable CuO: Graphene oxide core-shell porous nanocomposites for enhanced critical heat flux | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Materials Science; Physics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | copper oxide | - |
dc.subject.keywordAuthor | critical heat flux | - |
dc.subject.keywordAuthor | graphene oxide | - |
dc.subject.keywordAuthor | nanofluid | - |
dc.subject.keywordAuthor | nichrome wire | - |
dc.subject.keywordPlus | THERMAL-CONDUCTIVITY | - |
dc.subject.keywordPlus | NANOFLUIDS | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | FLUIDS | - |
dc.subject.keywordPlus | WATER | - |
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