Enhancement of laminar convective heat transfer using microparticle suspensions

Zhu, J, Tang, S, Yi, P, Baum, T, Khoshmanesh, K and Ghorbani, K 2016, 'Enhancement of laminar convective heat transfer using microparticle suspensions', Heat and Mass Transfer: Waerme- und Stoffuebertragung, vol. 53, no. 1, pp. 169-176.


Document type: Journal Article
Collection: Journal Articles

Title Enhancement of laminar convective heat transfer using microparticle suspensions
Author(s) Zhu, J
Tang, S
Yi, P
Baum, T
Khoshmanesh, K
Ghorbani, K
Year 2016
Journal name Heat and Mass Transfer: Waerme- und Stoffuebertragung
Volume number 53
Issue number 1
Start page 169
End page 176
Total pages 7
Publisher Springer
Abstract This paper investigates the enhancement of convective heat transfer within a sub-millimetre diameter copper tube using Al2O3, Co3O4 and CuO microparticle suspensions. Experiments are conducted at different particle concentrations of 1.0, 2.0 and 5.0 wt% and at various flow rates ranging from 250 to 1000 µl/min. Both experimental measurements and numerical analyses are employed to obtain the convective heat transfer coefficient. The results indicate a significant enhancement in convective heat transfer coefficient due to the implementation of microparticle suspensions. For the case of Al2O3 microparticle suspension with 5.0 wt% concentration, a 20.3 % enhancement in convective heat transfer coefficient is obtained over deionised water. This is comparable to the case of Al2O3 nanofluid at the same concentration. Hence, there is a potential for the microparticle suspensions to be used for cooling of compact integrated systems.
Subject Chemical Characterisation of Materials
Keyword(s) Aluminum
Cooling systems
Deionized water
Heat transfer
Heat transfer coefficients
Suspensions (fluids) Convective heat transfer
Convective heat transfer Coefficient
Copper tubes
Deionised waters
Integrated systems
Micro particles
Nanofluids
Particle concentrations
DOI - identifier 10.1007/s00231-016-1807-4
Copyright notice © 2016 Springer-Verlag Berlin Heidelberg
ISSN 0947-7411
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