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Thermal performance of brazed plate heat exchangers for a mixed-refrigerant Joule–Thomson cooler.

Performance thermique d’échangeurs de chaleur à plaques brasées pour un refroidisseur Joule-Thomson à frigorigène mixte.

Auteurs : PANG W., LIU J., HE J., et al.

Type d'article : Article, Article de la RIF

Résumé

The objective of the present work is to contribute to the development of a brazed plate heat exchanger as the recuperative heat exchanger for a mixed refrigerant Joule–Thomson cooler. In this study, the thermal performance of the recuperative heat exchanger is experimentally investigated. For the recuperative heat exchanger, the overall heat transfer coefficient varies from 38.3 to 362.5?W?m-2?K-1 and the exergy efficiency is in the range of 54.2–85.7%. Moreover, four condensation correlations and ten evaporation correlations were utilized to assess the mixture's two-phase overall heat transfer coefficient, with the modification of the mixture's mass transfer resistance. The experimental data are well-predicted by two correlation combinations with mean absolute errors of 17.1% and 15.8%, respectively. Hence, these two correlation combinations are recommended for use. Finally, the thermal resistances of the mixture's two-phase transfer process are evaluated by the correlation combination, that best predicts the experimental data.

Documents disponibles

Format PDF

Pages : 37-54

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 : Thermal performance of brazed plate heat exchangers for a mixed-refrigerant Joule–Thomson cooler.
  • Identifiant de la fiche : 30016471
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 61
  • Date d'édition : 01/2016

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