Research on Thermophysical Properties of Nanoliquids Based on SiO2 Nanoparticles for Use as a Heat-Transfer Medium in Solar-Thermal Converters
- Authors: Akhatov Z.S.1, Mirzaev S.Z.2, Wu Z.3, Telyaev S.S.3, Zhuraev E.T.1, Zhuraev T.I.1
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Affiliations:
- Physical and Technical Institute Physics of the Sun
- Institute of Ion-Plasma and Laser Technologies
- Solar Energy Laboratory
- Issue: Vol 54, No 1 (2018)
- Pages: 50-60
- Section: Solar Power Plants and Their Application
- URL: https://journals.rcsi.science/0003-701X/article/view/149376
- DOI: https://doi.org/10.3103/S0003701X18010024
- ID: 149376
Cite item
Abstract
This paper presents an analysis of the modern state of studies of the thermophysical properties of nanofluids and the heat-transfer mechanism in them. The results of experimental studies of obtaining and determining the dynamic viscosity of the nanofluids (SiO2 + water) with various concentrations of nanoparticles are given. Nanofluids are obtained using a two-stage method in an ultrasonic field with a frequency of 20 kHz. It is shown that, in the SiO2 + water system, nanoparticles with sizes of 7, 12, and 16 nm are most stable. Various SiO2 concentrations in the volume range 0.5–5% were tested, and their thermophysical properties were studied for the purpose of using them as a heat-transfer medium in flat-plate solar collectors.
About the authors
Zh. S. Akhatov
Physical and Technical Institute Physics of the Sun
Author for correspondence.
Email: jahatov@uzsci.net
Uzbekistan, Tashkent
S. Z. Mirzaev
Institute of Ion-Plasma and Laser Technologies
Email: jahatov@uzsci.net
Uzbekistan, Tashkent
Zhiyong Wu
Solar Energy Laboratory
Email: jahatov@uzsci.net
China, Beijing
S. S. Telyaev
Solar Energy Laboratory
Email: jahatov@uzsci.net
China, Beijing
E. T. Zhuraev
Physical and Technical Institute Physics of the Sun
Email: jahatov@uzsci.net
Uzbekistan, Tashkent
T. I. Zhuraev
Physical and Technical Institute Physics of the Sun
Email: jahatov@uzsci.net
Uzbekistan, Tashkent
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