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Document IIF

Echangeurs de chaleur à plaques à tubes ailetés à distance d'alignement importante + Erratum.

Heat transfer characteristics of flat plate finned-tube heat exchangers with large fin pitch + Erratum.

Auteurs : KIM Y.

Type d'article : Article, Article de la RIF

Résumé

The objective of this study is to provide experimental data that can be used in the optimal design of flat plate finned-tube heat exchangers with large fin pitch. In this study, 22 heat exchangers were tested with a variation of fin pitch, number of tube row, and tube alignment. The air-side heat transfer coefficient decreased with a reduction of the fin pitch and an increase of the number of tube row. The reduction in the heat transfer coefficient of the four-row heat exchanger coil was approximately 10% as the fin pitch decreased from 15.0 to 7.5 mm over the Reynolds number range of 500-900 that was calculated based on the tube diameter. For all fin pitches, the heat transfer coefficient decreased as the number of tube row increased from 1 to 4. The staggered tube alignment improved heat transfer performance more than 10% compared to the inline tube alignment. A heat transfer correlation was developed from the measured data for flat plate finned-tubes with large fin pitch. The correlation yielded good predictions of the measured data with mean deviations of 3.8 and 6.2% for the inline and staggered tube alignment, respectively.

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Format PDF

Pages : 851-858

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    20 €

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    Gratuit

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Détails

  • Titre original : Heat transfer characteristics of flat plate finned-tube heat exchangers with large fin pitch + Erratum.
  • Identifiant de la fiche : 2005-2496
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 28 - n. 6
  • Date d'édition : 09/2005

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