| Autor: |
Akhatov, Zh. S., Mirzaev, S. Z., Wu, Zhiyong, Telyaev, S. S., Zhuraev, E. T., Zhuraev, T. I. |
| Zdroj: |
Applied Solar Energy (19349424); Jan2018, Vol. 54 Issue 1, p50-60, 11p |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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