Numerical simulations of particle deposition in metal foam heat exchangers

Sauret, Emilie, Saha, Suvash C., & Gu, YuanTong (2013) Numerical simulations of particle deposition in metal foam heat exchangers. International Journal of Computational Materials Science and Engineering, 2(3&4), p. 1350016.

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Abstract

Australia is a high potential country for geothermal power with reserves currently estimated in the tens of millions of petajoules, enough to power the nation for at least 1000 years at current usage.However, these resources are mainly located in isolated arid regions where water is scarce. Therefore, wet cooling systems for geothermal plants in Australia are the least attractive solution and thus air-cooled heat exchangers are preferred. In order to increase the efficiency of such heat exchangers, metal foams have been used. One issue raised by this solution is the fouling caused by dust deposition. In this case, the heat transfer characteristics of the metal foam heat exchanger can dramatically deteriorate. Exploring the particle deposition property in the metal foam exchanger becomes crucial. This paper is a numerical investigation aimed to address this issue. Two-dimensional(2D numerical simulations of a standard one-row tube bundle wrapped with metal foam in cross-flow are performed and highlight preferential particle deposition areas.

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ID Code: 66776
Item Type: Journal Article
Refereed: Yes
Keywords: CFD modelling, metal foam heat exchangers, particle tracking, particle deposition
DOI: 10.1142/S2047684113500164
ISSN: 2047-685X
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > INTERDISCIPLINARY ENGINEERING (091500) > Computational Fluid Dynamics (091501)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > INTERDISCIPLINARY ENGINEERING (091500) > Computational Heat Transfer (091502)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2013 Imperial College Press
Deposited On: 30 Jan 2014 22:59
Last Modified: 02 Feb 2014 23:49

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