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Measurement of temperature-dependent viscosity and thermal conductivity of alumina and titania thermal oil nanofluids

Measurement of temperature-dependent viscosity and thermal conductivity of alumina and titania... Abstract In this study the results of simultaneous measurements of dynamic viscosity, thermal conductivity, electrical conductivity and pH of two nanofluids, i.e., thermal oil/Al 2 O 3 and thermal oil/TiO 2 are presented. Thermal oil is selected as a base liquid because of possible application in ORC systems as an intermediate heating agent. Nanoparticles were tested at the concentration of 0.1%, 1%, and 5% by weight within temperature range from 20 °C to 60 °C. Measurement devices were carefully calibrated by comparison obtained results for pure base liquid (thermal oil) with manufacturer’s data. The results obtained for tested nanofluids were compared with predictions made by use of existing models for liquid/solid particles mixtures. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Thermodynamics de Gruyter

Measurement of temperature-dependent viscosity and thermal conductivity of alumina and titania thermal oil nanofluids

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Publisher
de Gruyter
Copyright
Copyright © 2015 by the
ISSN
2083-6023
eISSN
2083-6023
DOI
10.1515/aoter-2015-0031
Publisher site
See Article on Publisher Site

Abstract

Abstract In this study the results of simultaneous measurements of dynamic viscosity, thermal conductivity, electrical conductivity and pH of two nanofluids, i.e., thermal oil/Al 2 O 3 and thermal oil/TiO 2 are presented. Thermal oil is selected as a base liquid because of possible application in ORC systems as an intermediate heating agent. Nanoparticles were tested at the concentration of 0.1%, 1%, and 5% by weight within temperature range from 20 °C to 60 °C. Measurement devices were carefully calibrated by comparison obtained results for pure base liquid (thermal oil) with manufacturer’s data. The results obtained for tested nanofluids were compared with predictions made by use of existing models for liquid/solid particles mixtures.

Journal

Archives of Thermodynamicsde Gruyter

Published: Dec 1, 2015

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