Partager

Caractéristiques de l'évaporation du R134a et du R600a à l'intérieur de tubes horizontaux à inserts perforés en forme de bande.

Evaporative characteristics of R134a and R600a in horizontal tubes with perforated strip-type inserts.

Auteurs : HSIEH S. S., JANG K. J., TSAI H. H.

Type d'article : Article

Résumé

Tests were conducted using a single-tube evaporator test facility. The test section used was 2000 mm long, 10.6 mm inside diameter, horizontal, smooth copper tube with perforated strip-type inserts made from the same material (copper). Test parameters were varied (heat flux, mass velocity, quality) at a saturation temperature of 6 °C. The heat transfer coefficients for R600a were higher than those for R134a. The heat transfer performance and pressure drop can be improved up to 2.5 and 1.5, respectively for a 96 perforated holes enhanced tube.

Détails

  • Titre original : Evaporative characteristics of R134a and R600a in horizontal tubes with perforated strip-type inserts.
  • Identifiant de la fiche : 2004-0062
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 46 - n. 10
  • Date d'édition : 05/2003

Liens


Voir d'autres articles du même numéro (5)
Voir la source

Indexation