2020年10月
Experimental study of influence of nanoparticles adhesion and sedimentation layer on solid-liquid interfacial thermal resistance
International Communications in Heat and Mass Transfer
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- 巻
- 117
- 号
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.icheatmasstransfer.2020.104807
© 2020 Elsevier Ltd Solid-liquid (S-L) interfacial thermal resistance (ITR) is one of the key phenomena in the microscopic system where the interface plays a role in thermal transport, such as nanofluids. The changes in the S-L ITR in the case of the nanoparticle adhesion and sedimentation had not been experimentally characterized until now. In the present study, we experimentally investigated the changes in the S-L ITR when the ZrO2 nanoparticle adhesion and sedimentation layer were formed on the stainless steel surface. We found that some portion of the nanoparticles inevitably adhered to the stainless steel surface. In the present study, the amount of the nanoparticle adhesion was not enough to change the macroscopic wettability and the S-L ITR. However, in the case of the nanoparticle sedimentation layer, the apparent S-L decreased, as the nanoparticle sedimentation became thicker. The tendency was consistent with the present thermal resistant model of the nanoparticle sedimentation layer. The nanoparticle sedimentation layer did not substantially influence the true S-L ITR. The above-mentioned findings are the basic knowledge that is beneficial and helpful for better understanding and designing the thermal conductivity measurements of the nanofluids, as well as the nanofluids heat transfer in flow channels.
- リンク情報
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- DOI
- https://doi.org/10.1016/j.icheatmasstransfer.2020.104807
- 共同研究・競争的資金等の研究課題
- 分子間エネルギー輸送機構に基づく,相変化を伴う複雑な流体-固体界面熱輸送の設計
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85089381476&origin=inward
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85089381476&origin=inward
- ID情報
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- DOI : 10.1016/j.icheatmasstransfer.2020.104807
- ISSN : 0735-1933
- SCOPUS ID : 85089381476