Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 147, Issue -, Pages 321-326Publisher
ELSEVIER
DOI: 10.1016/j.solmat.2015.12.030
Keywords
Nanoparticles; Nanofluid; Direct Absorption Solar Collector; Parabolic Trough Collector
Funding
- SOLAR project [DM19447]
- Italian Ministry of University and Research (MIUR)
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The use of nanofluids as working fluids in direct absorption solar collector is growing up and the study of optical properties of nanoparticles is an important step for the success of this new technology. In this paper we report optical absorption measurements performed on several metal oxide nano particles (ZnO, CeO2, and Fe2O3) as a function of temperature in the range 25-500 degrees C, in order to study their optical properties, and to investigate how several heating cycles could affect nanoparticle structural stability and absorption characteristics. These are quite important issues to be investigated in order to assess the possibility to use such metal-oxide nanoparticles as gas-based high temperature nanofluid in Concentrated Solar Power (CSP). (C) 2015 Elsevier B.V. All rights reserved.
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