Fouling of waste heat recovery : numerical and experimental results

Sauret, Emilie, Abdi, Iman, & Hooman, Kamel (2014) Fouling of waste heat recovery : numerical and experimental results. In 19th Australasian Fluid Mechanics Conference, 8-11 December 2014, RMIT University, Melbourne, Australia.

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Numerical results are presented to investigate the performance of a partly-filled porous heat exchanger for waste heat recovery units. A parametric study was conducted to investigate the effects of inlet velocity and porous block height on the pressure drop of the heat exchanger. The focus of this work is on modelling the interface of a porous and non-porous region. As such, numerical simulation of the problem is conducted along with hot-wire measurements to better understand the physics of the problem. Results from the two sources are then compared to existing theoretical predictions available in the literature which are unable to predict the existence of two separation regions before and after the porous block. More interestingly, a non-uniform interface velocity was observed along the streamwise direction based on both numerical and experimental data.

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ID Code: 79586
Item Type: Conference Paper
Refereed: Yes
Additional URLs:
Keywords: metal foam heat exchanger, CFD, porous media
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2014 [please consult the authors]
Deposited On: 22 Dec 2014 00:31
Last Modified: 05 Feb 2015 09:03

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