Jin, H, Lin, G, Bai, L et al. (3 more authors) (2016) Photothermal conversion efficiency of nanofluids: An experimental and numerical study. Solar Energy, 139. pp. 278-289. ISSN 0038-092X
Abstract
This work investigated experimentally the photothermal conversion efficiency (PTE) of gold nanofluids in a cylindrical tube under natural solar irradiation conditions, which was also compared with a developed 3-D numerical model. The PTE of gold nanofluids was found to be much higher than that of pure water, and increased non-linearly with the nanoparticle concentration, reaching 76.0% at a concentration of 5.8 ppm. Significant non-uniform temperature distribution was identified both experimentally and numerically, and a large uncertainty can be produced in the PTE calculation by using only one-point temperature measurement. A mathematical model was also established to calculate the solar absorption efficiency without knowing the temperature field within the nanofluids, which can be used to predict the theoretical PTE for nanofluids based on their optical properties only.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2016, Elsevier. This is an author produced version of a paper published in Solar Energy. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Nanoparticle; Nanofluid; Solar energy; Photothermal conversion efficiency; Direct absorption |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 01 Nov 2016 11:46 |
Last Modified: | 06 Oct 2017 18:10 |
Published Version: | https://doi.org/10.1016/j.solener.2016.09.021 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.solener.2016.09.021 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:106756 |