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Une comparaison expérimentale de l'écoulement de frigorigène le long de tubes capillaires adiabatiques et diabatiques enroulés.

An experimental comparison of the refrigerant flow along adiabatic and diabatic coiled capillary tubes.

Numéro : pap. 2655

Auteurs : ZAREH M., JAVIDMAND P., HOFFMANN K. A.

Résumé

This paper presents experimental comparison of the R134a flow through lateral coiled capillary tubes-suction line heat exchanger (diabatic) and adiabatic coiled capillary tubes in vapor compression refrigeration cycle (VCRC). The experimental results illustrated that mass flux ratio (Gc/Gs) is main parameter that affects metastable flow through non-adiabatic coiled capillary tube. Therefore, an increase of the mass flux ratio represents a decrease of the heat transfer rate between the capillary tube and suction line. The measured and saturated pressure distribution also proof that metastable flow in the non-adiabatic coiled capillary tube with 1.397 mm inner diameter, 30 mm coil diameter, 4360 mm length, 4 mm inner diameter of suction tube exists, when the heat transfer rate between the coiled capillary tube and the suction line is weak with mass flux ratio more than 343.

Documents disponibles

Format PDF

Pages : 10 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : An experimental comparison of the refrigerant flow along adiabatic and diabatic coiled capillary tubes.
  • Identifiant de la fiche : 30013242
  • Langues : Anglais
  • Source : 2014 Purdue Conferences. 15th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 14/07/2014

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