Applied Solar Energy

, Volume 54, Issue 1, pp 50–60 | Cite as

Research on Thermophysical Properties of Nanoliquids Based on SiO2 Nanoparticles for Use as a Heat-Transfer Medium in Solar-Thermal Converters

  • Zh. S. Akhatov
  • S. Z. Mirzaev
  • Zhiyong Wu
  • S. S. Telyaev
  • E. T. Zhuraev
  • T. I. Zhuraev
Solar Power Plants and Their Application
  • 5 Downloads

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.

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Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  • Zh. S. Akhatov
    • 1
  • S. Z. Mirzaev
    • 2
  • Zhiyong Wu
    • 3
  • S. S. Telyaev
    • 3
  • E. T. Zhuraev
    • 1
  • T. I. Zhuraev
    • 1
  1. 1.Physical and Technical Institute Physics of the SunAcademy of Sciences of the Republic of UzbekistanTashkentUzbekistan
  2. 2.Institute of Ion-Plasma and Laser TechnologiesAcademy of Science of the Republic of UzbekistanTashkentUzbekistan
  3. 3.Solar Energy LaboratoryInstitute of Electrical Engineering CASBeijingChina

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