Constructal design of complex assembly of fins / Giulio Lorenzini in Journal of heat transfer, Vol. 133 N° 8 (Août 2011)  

Public ISBD [article]  inJournal of heat transfer > Vol. 133 N° 8 (Août 2011) . - pp. [081902/1-7] Titre : Constructal design of complex assembly of fins Type de document : texte imprimé Auteurs : Giulio Lorenzini, Auteur ; Roberta Lima Correa, Auteur ; Luiz Alberto Oliveira Rocha, Auteur Année de publication : 2011 Article en page(s) : pp. [081902/1-7] Note générale : Physique Langues : Anglais (eng) Mots-clés : Constructal design Enhanced heat transfer Fins Optimization Index. décimale : 536 Chaleur. Thermodynamique Résumé : Constructal design is a method that conducts the designer toward flow (e.g., heat flux) architectures that have greater global performance. This numerical work uses this method to seek for the best geometry of a complex assembly of fins, i.e., an assembly where there is a cavity between the two branches of the T-Y-assembly of fins and two additional extended surfaces. The global thermal resistance of the assembly is minimized four times by geometric optimization subject to the following constraints: the total volume, the volume of fin material, the volume of the cavity, and the volume of the two additional extended surfaces. Larger amount of fin material improves the performance of the assembly of fins. The three times optimized global thermal resistance of the complex assembly of fins performs 32% better than the best T-Y-configuration under the same thermal and geometric conditions. The three times minimized global thermal resistance of the complex assembly of fins was correlated by power laws as a function of its corresponding optimal configurations. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO00013300 [...] [article] Constructal design of complex assembly of fins [texte imprimé] / Giulio Lorenzini, Auteur ; Roberta Lima Correa, Auteur ; Luiz Alberto Oliveira Rocha, Auteur . - 2011 . - pp. [081902/1-7]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 133 N° 8 (Août 2011) . - pp. [081902/1-7] Mots-clés : Constructal design Enhanced heat transfer Fins Optimization Index. décimale : 536 Chaleur. Thermodynamique Résumé : Constructal design is a method that conducts the designer toward flow (e.g., heat flux) architectures that have greater global performance. This numerical work uses this method to seek for the best geometry of a complex assembly of fins, i.e., an assembly where there is a cavity between the two branches of the T-Y-assembly of fins and two additional extended surfaces. The global thermal resistance of the assembly is minimized four times by geometric optimization subject to the following constraints: the total volume, the volume of fin material, the volume of the cavity, and the volume of the two additional extended surfaces. Larger amount of fin material improves the performance of the assembly of fins. The three times optimized global thermal resistance of the complex assembly of fins performs 32% better than the best T-Y-configuration under the same thermal and geometric conditions. The three times minimized global thermal resistance of the complex assembly of fins was correlated by power laws as a function of its corresponding optimal configurations. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO00013300 [...]

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