dc.contributor.author | Balakin, Boris | |
dc.contributor.author | Stava, Mattias | |
dc.contributor.author | Kosinska, Anna Dorota | |
dc.date.accessioned | 2022-09-08T08:15:53Z | |
dc.date.available | 2022-09-08T08:15:53Z | |
dc.date.created | 2022-05-20T09:43:20Z | |
dc.date.issued | 2022 | |
dc.identifier.citation | Balakin, B. V., Stava, M., & Kosinska, A. (2022). Photothermal convection of a magnetic nanofluid in a direct absorption solar collector. Solar Energy, 239, 33-39. | en_US |
dc.identifier.issn | 0038-092X | |
dc.identifier.uri | https://hdl.handle.net/11250/3016490 | |
dc.description.abstract | Nanofluid-based direct absorption of solar heat results in thermal efficiencies superior to conventional solar thermal technology. In addition, convection of nanofluid can be sustained pump-free in the collector. In this article, we study an aqueous magnetic nanofluid capable to establish the photothermal convection in a lab-scale direct absorption solar collector equipped with a solenoid. The nanofluid consisted of 60-nm Fe2O3 particles dispersed in distilled water at concentration in the range 0.5% wt.-2.0% wt. An empirical model of the photothermal convection was developed based on the experiments. The model accounted for magnetic and thermophoretic forces acting within the nanofluid. The nanofluid with up to 2.0% wt. iron oxide nanoparticles obtained the velocity of ~5 mm/s under the magnetic field of up to 28 mT. This resulted in the maximum thermal efficiency of the collector equal to 65%. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Photothermal convection of a magnetic nanofluid in a direct absorption solar collector | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | © 2022 The Author(s) | en_US |
dc.source.pagenumber | 33-39 | en_US |
dc.source.volume | 239 | en_US |
dc.source.journal | Solar Energy | en_US |
dc.identifier.doi | 10.1016/j.solener.2022.04.027 | |
dc.identifier.cristin | 2025871 | |
dc.relation.project | Norges forskningsråd: 300286 | en_US |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |