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Étude expérimentale du coefficient de transfert de chaleur du R1234yf pendant la condensation à l’intérieur d’un tube multiport à mini-canaux.

Experimental investigation of heat transfer coefficient of R1234yf during condensation inside multiport mini-channel tube.

Numéro : No 336

Auteurs : PHAM Q. V., OH J. T.

Résumé

R1234yf is an Hydrofluro-Olefins (HFO) that is used as a good candidate for replacing R134a in automotive air conditioning, and it has a low global warming potential of 4 and zero ozone depletion potential (ODP). R1234yf has cooling performance that is 5 % less than R134A but is significantly better for the environment. This research report measured and analyzed the heat transfer performances of R1234yf in the condensation process inside two different multiport mini-channel tubes. Experimental data was obtained for mass fluxes
from (50 to 500) kg/m2s, and heat fluxes from (3 to 12) kW/m2 at a fixed saturation temperature of 48 °C. The flow distribution of the R1234yf effect on the heat transfer coefficient was analyzed. Finally, a new heat transfer coefficient correlation was developed from the experimental data. 

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Pages : 7 p.

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Détails

  • Titre original : Experimental investigation of heat transfer coefficient of R1234yf during condensation inside multiport mini-channel tube.
  • Identifiant de la fiche : 30030107
  • Langues : Anglais
  • Sujet : Alternatives aux HFC
  • Source : 13th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
  • Date d'édition : 31/08/2021

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