Partager

Document IIF

Évaluation de performances thermohydrauliques : amélioration de l’évaporation dans des échangeurs de chaleur à plaques modifiés.

Assessing Thermo-hydraulic performance: Enhanced evaporation in modified plate heat exchangers.

Auteurs : VIJAYAKUMAR S., ADVAITH S., MANI A.

Type d'article : Article de la RIF

Résumé

This study investigates the effects of surface modification on the performance of plate heat exchangers used in vapour compression refrigeration systems with R-407C as the refrigerant. Specifically, the research analyzes copper-coated and metal-foamed layer plate heat exchangers, comparing their performance against a conventional plain plate heat exchanger. Experimental findings revealed that the heat transfer coefficient for the copper-coated exchanger is enhanced by 23.2% within a heat flux range of 10 to 20 kW/m2 and a mass flux range of 20 to 30 kg/m2s. In contrast, the metal-foamed heat exchanger demonstrated an impressive 48% increase in heat transfer coefficient but also resulted in a 25% increase in frictional pressure drop. The coppercoated exchanger presented a minimal increase of 5% in frictional pressure drop, highlighting its efficiency in
low heat flux conditions. Thermal performance factors indicate that the copper-coated exchanger offers a 23% performance improvement over the plain corrugated plate heat exchanger, while the metal foamed exchanger exceeds the performance of the plain plate exchanger by 39%, making it suitable for high heat flux conditions. These findings underscore the potential of surface modification techniques in enhancing the performance of plate heat exchangers in refrigeration applications.

Documents disponibles

Format PDF

Pages : 15 p.

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 : Assessing Thermo-hydraulic performance: Enhanced evaporation in modified plate heat exchangers.
  • Identifiant de la fiche : 30034349
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 179
  • Date d'édition : 11/2025
  • DOI : http://dx.doi.org/https://doi.org/10.1016/j.ijrefrig.2025.08.027

Liens


Voir d'autres articles du même numéro (36)
Voir la source

Indexation