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Étude expérimentale d'un condenseur séparateur liquide-vapeur à microcanaux à double rangée.

Experimental investigation of double rows liquid-vapor separation microchannel condenser.

Numéro : pap. n. 886

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

Résumé

Double rows liquid-vapor separation microchannel condenser (D-LSMC) is a novel condenser, an optimal tube pass scheme D-LSMC was obtained by the theoretical method. A series of experiments were conducted to research heat load, average heat transfer coefficient (AHTC) and pressure drop of the optimal D-LSMC. The experimental results were compared with an optimal common double rows parallel flow microchannel condenser (D-PFMC). The findings showed, at mass flow rate 0.026 kg/s to 0.036 kg/s (equal to mass flux of 635 kgm-2s-1 to 874 kgm-2s-1 in the first tube pass), the AHTCs of the D-LSMC were 4.5% to 15.1% higher than the D-PFMC, however the pressure drop of the D-LSMC were only 46.3% to 52.0% of the D-PFMC. In addition, the heat transfer capacity of back tube row almost reduced by half than the front tube row. The minimum entropy generation number (Ns) was used to evaluate the D-LSMC and the D-PFMC, which indicated the D-LSMC owned greater thermodynamic performance.

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Pages : 8 p.

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    20 €

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    Gratuit

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Détails

  • Titre original : Experimental investigation of double rows liquid-vapor separation microchannel condenser.
  • Identifiant de la fiche : 30015156
  • Langues : Anglais
  • Source : Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
  • Date d'édition : 16/08/2015
  • DOI : http://dx.doi.org/10.18462/iir.icr.2015.0886

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