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Abstract
In this work, Nusselt number and friction factor are calculated numerically for turbulent pipe flow (Reynolds number between 6000 and 12000) with constant heat flux boundary condition using nanofluids. The nanofluid is modelled with the single-phase approach and the simulation results are compared with experimental data. Ethylene glycol and water, 60:40 EG/W mass ratio, as base fluid and SiO2 nanoparticles are used as nanofluid with particle volume concentrations ranging from 0% to 10%. Nusselt number predictions for the nanofluid are in agreement with experimental results and a conventional single-phase correlation. The mean deviation is in the range of 5%. Friction factor values show a mean deviation of 1.5% to a conventional single-phase correlation, however, they differ considerably from the nanofluid experimental data. The results indicate that the nanofluid requires more pumping power than the base fluid for high particle concentrations and Reynolds numbers on the basis of equal heat transfer rate.
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Authors (4)
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Hendrik Boertz
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Albert Baars Prof.
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Sławomir Smoleń
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1080/01457632.2017.1295739
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
HEAT TRANSFER ENGINEERING
no. 39,
pages 241 - 251,
ISSN: 0145-7632 - Language:
- English
- Publication year:
- 2018
- Bibliographic description:
- Boertz H., Baars A., Cieśliński J., Smoleń S.: Numerical Study of Turbulent Flow and Heat Transfer of Nanofluids in Pipes// HEAT TRANSFER ENGINEERING. -Vol. 39, iss. 3 (2018), s.241-251
- DOI:
- Digital Object Identifier (open in new tab) 10.1080/01457632.2017.1295739
- Sources of funding:
-
- COST_FREE
- Verified by:
- Gdańsk University of Technology
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