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Étude expérimentale du transfert de chaleur par condensation et de la chute de pression du R1234yf à l’intérieur d’un tube horizontal à micro-ailettes de 3,5 mm de diamètre extérieur.

Experimental study on condensation heat transfer and pressure drop of R1234yf inside a 3.5 mm OD horizontal microfin tube.

Numéro : 1014

Auteurs : MAINIL A. K., SAKAMOTO N., BASHAR M. K., KARIYA K., MIYARA A.

Résumé

This study presents an experimental investigation for condensation heat transfer and pressure drop of R1234yf in horizontal microfin tube with 3.5 mm outer diameter. R1234yf is one of HFOs and has Global Warming Potential lower than 1, much more environment-friendly refrigerants than R134a which has GWP of 1430. Because it has close thermodynamic properties, R1234yf has more suitable potential to replace R134a for air conditioning and refrigeration systems. The experiments are carried out at a saturation temperature of 20 ºC and 30 ºC, mass velocity ranging from 50 to 200 kg m-2s-1 and vapor quality ranging from 0.08-0.93. The effect of mass velocity, vapor quality, and saturation temperature on condensation heat transfer coefficient and frictional pressure drop were analysed. The experimental results are compared against values predicted by empirical correlations available in the open literature.

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Format PDF

Pages : 8

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    20 €

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Détails

  • Titre original : Experimental study on condensation heat transfer and pressure drop of R1234yf inside a 3.5 mm OD horizontal microfin tube.
  • Identifiant de la fiche : 30028782
  • Langues : Anglais
  • Sujet : Alternatives aux HFC
  • Source : 2nd IIR Conference on HFO Refrigerants and Low GWP Blends
  • Date d'édition : 06/2021
  • DOI : http://dx.doi.org/10.18462/iir.HFO.2021.1014

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