Partager

Document IIF

Réfrigérants hydrocarbures coefficient de transfert de chaleur locaux en ébullition à l’intérieur d’un échangeur de chaleur à plaques brasées (bphe).

Hydrocarbon refrigerants boiling local heat transfer coefficients inside a Brazed Plate Heat Exchanger (BPHE).

Auteurs : LONGO G. A., MANCIN S., RIGHETTI G., ZILIO C.

Type d'article : Article de la RIF

Résumé

This paper presents the local heat transfer coefficients of R290 (propane) and R1270 (propylene) boiling inside a Brazed Plate Heat Exchanger (BPHE). A new test section was designed for measuring the local heat transfer coefficient in refrigerant two-phase heat transfer in a BPHE. The test section includes two thick AISI316L stainless steel corrugated plates instrumented with 36 T-type thermocouples for measuring the local plate surface temperature, the local heat flux and the local heat transfer coefficient in 9 positions along the refrigerant channel. The experimental tests were carried out at a boiling temperature of 10 ◦C, in the refrigerant mass flux range 5 -17.5 kg m-2 s-1 with an inlet vapour quality ranging from 0.24 to 0.37 and an outlet vapour quality around 1.00. The global uncertainty of the local heat transfer coefficient measurement is within ±12.7%, and ±15.6%, for R290, and R1270, respectively. Nucleate boiling seems to be the governing heat transfer regime both in R290 and R1270 tests. Consolidated correlations for nucleate boiling inside BPHE show a fair agreement with all the experimental data. R290 and R1270 exhibit boiling heat transfer performance between those of R404A and those of R410A.

Documents disponibles

Format PDF

Pages : p. 113-122

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 : Hydrocarbon refrigerants boiling local heat transfer coefficients inside a Brazed Plate Heat Exchanger (BPHE).
  • Identifiant de la fiche : 30032055
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - Vol. 156
  • Date d'édition : 12/2023
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2022.10.001

Liens


Voir d'autres articles du même numéro (26)
Voir la source

Indexation