Thermo-hydraulic comparison of 10 PPi metal foam and louvered fins for low velocity applications
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Date
Authors
De Schampheleire, S.
De Jaeger, P.
Huisseune, Henk
Ameel, B.
T’Joen, C.
De Paepe, M.
Journal Title
Journal ISSN
Volume Title
Publisher
International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics
Abstract
Paper presented at the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.
To maximize the effectiveness and thus minimize the airside resistance, a relatively new heat enhancing material, aluminium foam, is compared with the current state-of-the-art, louvered fins, in a wind tunnel experiment. The comparison between both heat exchangers is done based on a well-defined Performance Evaluation Criterion (PEC), taking heat transfer and pressure drop in account. Furthermore, as the studied heat exchangers are so-called ‘low-capacity’ units, a non-uniform temperature field downstream the heat exchanger is induced. Therefore an area-mean temperature reading has been developed, with the aid of an infra red camera. Finally, the contribution of the contact resistance to the overall thermal resistance of these pressed-fit heat exchangers is investigated.
To maximize the effectiveness and thus minimize the airside resistance, a relatively new heat enhancing material, aluminium foam, is compared with the current state-of-the-art, louvered fins, in a wind tunnel experiment. The comparison between both heat exchangers is done based on a well-defined Performance Evaluation Criterion (PEC), taking heat transfer and pressure drop in account. Furthermore, as the studied heat exchangers are so-called ‘low-capacity’ units, a non-uniform temperature field downstream the heat exchanger is induced. Therefore an area-mean temperature reading has been developed, with the aid of an infra red camera. Finally, the contribution of the contact resistance to the overall thermal resistance of these pressed-fit heat exchangers is investigated.
Description
Keywords
Airside resistance, Aluminium foam, Louvered fins, Performance Evaluation Criterion, PEC, Infra red camera, Contact resistance, Thermal resistance, Low velocity applications
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Citation
De Schampheleire, S, De Jaeger, P, Huisseune, H, Ameel, B, T’Joen, C & De Paepe, M 2012, Thermo-hydraulic comparison of 10 PPi metal foam and louvered fins for low velocity applications, Paper presented to the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.