In this paper the effect of nanoparticle concentration and temperature on the thermal conductivity of Yttria-Ethylene glycol nanofluid has been investigated. In addition, the effect of aging on the viscosity and the thermal conductivity of these nanofluids also have been studied. The nanofluids were prepared by two-step method, and particle size distributions were characterized using acoustic spectroscopy. It was found that the thermal conductivity of Yttria nanofluids increases beyond the classical Hamilton-Crosser model. Moreover, the enhancement in the thermal conductivity of this nanofluid showed high temperature dependence behavior. For instance at 3.0% by volume particles loading, the thermal conductivity enhancement increased from 16.6% at 26 °C to 27.0% at 59 °C, making these nanofluids attractive and effective for cooling systems that operates at high temperatures. Finally, time dependent viscosity and thermal conductivity measurements showed stable behavior for 16 days of study demonstrating the good stability of these nanofluids.
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ASME 2012 Third International Conference on Micro/Nanoscale Heat and Mass Transfer
March 3–6, 2012
Atlanta, Georgia, USA
Conference Sponsors:
- Nanotechnology Institute
ISBN:
978-0-7918-5477-8
PROCEEDINGS PAPER
Thermal Conductivity Behavior of Yttria Nanofluids
Salim J. S. Masharqa,
Salim J. S. Masharqa
Masdar Institute of Science and Technology, Abu Dhabi, UAE
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Waka Tesfai,
Waka Tesfai
Masdar Institute of Science and Technology, Abu Dhabi, UAE
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Pawan K. Singh,
Pawan K. Singh
Masdar Institute of Science and Technology, Abu Dhabi, UAE
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Matteo Chiesa,
Matteo Chiesa
Masdar Institute of Science and Technology, Abu Dhabi, UAE
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Youssef Shatilla
Youssef Shatilla
Masdar Institute of Science and Technology, Abu Dhabi, UAE
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Salim J. S. Masharqa
Masdar Institute of Science and Technology, Abu Dhabi, UAE
Waka Tesfai
Masdar Institute of Science and Technology, Abu Dhabi, UAE
Pawan K. Singh
Masdar Institute of Science and Technology, Abu Dhabi, UAE
Matteo Chiesa
Masdar Institute of Science and Technology, Abu Dhabi, UAE
Youssef Shatilla
Masdar Institute of Science and Technology, Abu Dhabi, UAE
Paper No:
MNHMT2012-75095, pp. 201-206; 6 pages
Published Online:
July 18, 2013
Citation
Masharqa, SJS, Tesfai, W, Singh, PK, Chiesa, M, & Shatilla, Y. "Thermal Conductivity Behavior of Yttria Nanofluids." Proceedings of the ASME 2012 Third International Conference on Micro/Nanoscale Heat and Mass Transfer. ASME 2012 Third International Conference on Micro/Nanoscale Heat and Mass Transfer. Atlanta, Georgia, USA. March 3–6, 2012. pp. 201-206. ASME. https://doi.org/10.1115/MNHMT2012-75095
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