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Caractéristiques de transfert de chaleur local par condensation et évaporation du mélange de frigorigènes R1123 et R32 à l'intérieur d'un échangeur de chaleur à plaques.

Condensation and evaporation local heat transfer characteristics of the refrigerant mixture of R1123 and R32 inside a plate heat exchanger.

Numéro : pap. 2565

Auteurs : KARIYA K., SONODA K., MIYARA A.

Résumé

In the present study, condensation and evaporation local heat transfer coefficients of the refrigerant mixture of R1123 and R32 inside a brazed plate heat exchanger were investigated by using a test section which is combined with two grooved stainless steel plates. In the test section, wall temperature distribution was measured. The test section consists of eight plates; two of them were processed herringbone for refrigerant flow channel other two flat plates are set for cooling plate for refrigerant, and another consist on cooling water flow channel. In order to measure local heat transfer and temperature distribution, five thermocouples were set on flow direction for each wall temperature measurement of the refrigerant side and heat source water side. Local heat transfer coefficient were calculated from local wall temperature of refrigerant side, saturation temperature and local heat flux obtained by temperature gradient between heat transfer surface of refrigerant side and heat source side.

Documents disponibles

Format PDF

Pages : 9

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 : Condensation and evaporation local heat transfer characteristics of the refrigerant mixture of R1123 and R32 inside a plate heat exchanger.
  • Identifiant de la fiche : 30024648
  • Langues : Anglais
  • Source : 2018 Purdue Conferences. 17th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 09/07/2018

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