Particle size distribution effects on preferential deposition areas in metal foam wrapped tube bundle

Sauret, E. and Hooman, K. (2014) Particle size distribution effects on preferential deposition areas in metal foam wrapped tube bundle. International Journal of Heat and Mass Transfer, 79 905-915. doi:10.1016/j.ijheatmasstransfer.2014.08.038


Author Sauret, E.
Hooman, K.
Title Particle size distribution effects on preferential deposition areas in metal foam wrapped tube bundle
Journal name International Journal of Heat and Mass Transfer   Check publisher's open access policy
ISSN 0017-9310
1879-2189
Publication date 2014-12-01
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.ijheatmasstransfer.2014.08.038
Open Access Status Not Open Access
Volume 79
Start page 905
End page 915
Total pages 11
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon Press
Language eng
Subject 2210 Mechanical Engineering
3104 Condensed Matter Physics
1507 Transportation and Freight Services
Abstract This paper presents a numerical model for understanding particle transport and deposition in metal foam heat exchangers. Two-dimensional steady and unsteady numerical simulations of a standard single row metal foam-wrapped tube bundle are performed for different particle size distributions, i.e. uniform and normal distributions. Effects of different particle sizes and fluid inlet velocities on the overall particle transport inside and outside the foam layer are also investigated. It was noted that the simplification made in the previously-published numerical works in the literature, e.g. uniform particle deposition in the foam, is not necessarily accurate at least for the cases considered here. The results highlight the preferential particle deposition areas both along the tube walls and inside the foam using a developed particle deposition likelihood matrix. This likelihood matrix is developed based on three criteria being particle local velocity, time spent in the foam, and volume fraction. It was noted that the particles tend to deposit near both front and rear stagnation points. The former is explained by the higher momentum and direct exposure of the particles to the foam while the latter only accommodate small particles which can be entrained in the recirculation region formed behind the foam-wrapped tubes.
Keyword Metal foam
Heat exchangers
Particle deposition
CFD
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2015 Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 7 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 9 times in Scopus Article | Citations
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