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

Archives of Thermodynamics

Janusz T. Cie?li?skiCorresponding author Gdansk University of Technology, Narutowicza 11/12, 80-233 Gda?sk, PolandEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹  Katarzyna Ronewicz Gdansk University of Technology, Narutowicza 11/12, 80-233 Gda?sk, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  S?awomir Smole? Hochschule Bremen, Neustadswall 30, 28-199 Bremen, GermanyOther articles by this author:De Gruyter OnlineGoogle Scholar² 

[1] Gdansk University of Technology, Narutowicza 11/12, 80-233 Gda?sk, Poland;Hochschule Bremen, Neustadswall 30, 28-199 Bremen, Germany

关键词: Keywords: Nanofluids;    Dynamic viscosity;    Thermal conductivity;    Electrical conductivity;   

DOI  :  10.1515/aoter-2015-0031

学科分类：能源（综合）

来源: Polska Akademia Nauk * Oddzial w Gdansku, Instytut Maszyn Przeplywowych / Polish Academy of Sciences, Institute of Fluid-Flow Machinery

【 摘 要 】

In this study the results of simultaneous measurements of dynamic viscosity, thermal conductivity, electrical conductivity and pH of two nanofluids, i.e., thermal oil/Al2O3 and thermal oil/TiO2 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.

【 授权许可】

Unknown