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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Nanoscience and Technology: An International Journal
ESCI SJR: 0.228 SNIP: 0.484 CiteScore™: 0.37

ISSN Печать: 2572-4258
ISSN Онлайн: 2572-4266

Nanoscience and Technology: An International Journal

Ранее издавался как Nanomechanics Science and Technology: An International Journal

DOI: 10.1615/NanomechanicsSciTechnolIntJ.v3.i4.30
pages 311-332

INVESTIGATION OF NANOFLUID APPLICATIONS IN DIRECT SOLAR ENERGY ABSORPTION

Abolfazl Asnaghi
Renewable Energy Department, Energy and Environment Research Center, Niroo Research Institute, Ministry of Energy, PO Box 14665 517, Tehran, Iran
S. M. Ladjevardi
Renewable Energy Department, Energy and Environment Research Center, Niroo Research Institute, Ministry of Energy, PO Box 14665 517, Tehran, Iran
P. S. Izadkhast
Renewable Energy Department, Energy and Environment Research Center, Niroo Research Institute, Ministry of Energy, PO Box 14665 517, Tehran, Iran
A. H. Kashani
Renewable Energy Department, Energy and Environment Research Center, Niroo Research Institute, Ministry of Energy, PO Box 14665 517, Tehran, Iran

Краткое описание

In the current study, applications of nanofluids in direct absorption and direct conversion of solar radiation into heat in volumetric solar receivers have been investigated. A numerical code is developed to simulate irradiation propagation, energy derivation, irradiation energy level, and temperature distribution in nanofluids. By considering different nanoparticles, efficiency of solar receivers in absorption of solar energy have been studied. Candidate nanoparticles are presented and their impacts on harvested solar energy, irradiation spectrum distributions, and irradiation energy level versus the depth of the flow in comparison with other nanofluids are investigated. Increased efficiency of collectors using nanoparticles, as well as increase in costs are evaluated. The results of this study show that pure water over the depth of one meter could absorb only 66% of incident irradiation energy, while by using nanoparticles it would be possible to absorb more than 90% of the incident irradiation energy over the depth of 10 cm.


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