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Étude expérimentale de la performance thermodynamique d'un condenseur à microcanaux à séparation liquide-vapeur à double rangée.

Experimental investigation on the thermodynamic performance of double-row liquid–vapor separation microchannel condenser.

Auteurs : ZHONG T. M., CHEN Y., YANG Q. C., et al.

Type d'article : Article, Article de la RIF

Résumé

A double-row liquid–vapor separation microchannel condenser (D-LSMC) was presented, and its tube pass scheme was optimized using the theoretical method. A series of experiments were conducted to investigate the heat load, average heat transfer coefficient (AHTC), and pressure drop of the optimal D-LSMC. Experimental results were compared with an optimal common double-row parallel-flow microchannel condenser (D-PFMC). The findings showed that, at the inlet mass flux of 585?kgm-2?s-1 to 874?kgm-2?s-1, the AHTC of the D-LSMC was 3.3%–14.4% higher than that of the D-PFMC. However, the pressure drop of the D-LSMC was only 43.4%–52.1% of that of the D-PFMC. The heat exchange capacity of the back row was weaker by almost half of that of the front row. In addition, the tube wall temperature of the back row decreased faster than that of the front row, which indicated that the back row had a larger pressure drop. The minimum entropy generation number (Ns) was used to evaluate the D-LSMC and the D-PFMC, which indicated the greater thermodynamic performance of the D-LSMC.

Documents disponibles

Format PDF

Pages : 373-382

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Experimental investigation on the thermodynamic performance of double-row liquid–vapor separation microchannel condenser.
  • Identifiant de la fiche : 30017817
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 67
  • Date d'édition : 07/2016

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