Partager

Document IIF

Corrélations rapides et empiriques pour la chute de pression de frigorigène dans les évaporateurs de système de conditionnement d'air mobile.

Quick and empirical correlations for refrigerant pressure drop in mobile air conditioning system evaporators.

Auteurs : QI Z.

Type d'article : Article, Article de la RIF

Résumé

In heat exchanger design and simulation, a precise refrigerant pressure drop prediction is difficult because of limited correlation's accuracy. In the present paper, several quick and accurate empirical correlations for refrigerant pressure drop of the typical evaporators (laminated plate evaporator and minichannel parallel flow (MCPF) evaporator) used in mobile air conditioning (MAC) system were proposed. A factor which was related with the refrigerant mass flow rate, thermodynamic properties and refrigerant status was introduced. The types of evaporator and refrigerant were considered in the correlations which were available under typical MAC evaporator application conditions. The analysis results showed the refrigerant pressure drops were implied in a linear relationship with the proposed factor. The predicted data agreed with the experimental data very well. For laminated palate evaporators, the average deviations were 1.8% and 0.7% for R134a and R1234yf, respectively. For MCPF evaporator, the average deviations were 4.5% and 0.6% for R134a and R1234yf, respectively.

Documents disponibles

Format PDF

Pages : 30-36

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 : Quick and empirical correlations for refrigerant pressure drop in mobile air conditioning system evaporators.
  • Identifiant de la fiche : 30014603
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 55
  • Date d'édition : 07/2015

Liens


Voir d'autres articles du même numéro (18)
Voir la source

Indexation