Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 42, Issue 43, Pages 26626-26638Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2017.09.044
Keywords
Sea water; Complex refractive index; TiO2 nanofluids; Extinction coefficient; Transmittance
Categories
Funding
- National Natural Science Foundation of China [51676061, 51406239]
- China Postdoctoral Science Foundation [2016T90283]
- fundamental research funds for the central universities [HIT.NSRIF.201706]
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Photocatalytic decomposition of sea water is an effective way to solve the future energy crisis. However, there is a great deal of controversy about seawater's effect on photo catalytic hydrogen production efficiency. In this paper, the catalyst particles are divided into large particles (x >1) and small particles (x < 1). The Mie theory combined with Monte Carlo method are used to analyze the influence of sea water on radiative transfer in the sea water-based nanofluids. The effects of the optical constants of the base fluid (fresh water and sea water) on the spectral extinction and spectral transmittance of the TiO2 nanofluids are calculated. Results indicate that, for sea water-based nanofluids with small particles (x < 1), the spectral extinction coefficient increases and spectral transmittance decreases with salt concentration increasing. For sea water-based nanofluids with large particles (x > 1), the spectral extinction coefficient and transmittance oscillate because of diffraction peaks. (c) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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