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Chute de pression frictionnelle diphasique dans les canaux horizontaux à micro-échelle : Analyse des données expérimentales et développement d’une méthode prédictive.

Two-phase frictional pressure drop in horizontal micro-scale channels: Experimental data analysis and prediction method development.

Auteurs : SEMPERTEGUI-TAPIA D. F., RIBATSKI G.

Type d'article : Article, Article de la RIF

Résumé

An investigation was conducted on the effects of fluid refrigerant and channel geometry on the frictional pressure drop during two-phase flow inside microchannels. Experimental results for two-phase frictional pressure drop were obtained for the refrigerants R134a, R1234ze(E), R1234yf and R600a in a circular channel and for R134a in square and triangular channels. The experiments were performed for mass velocities from 100 to 1600 kg m-2 s-1, saturation temperatures of 31 and 41 °C, and vapor qualities from 0.05 to 0.95. The experimental data have been analyzed focusing on the effects of the geometry and fluid on the two-phase pressure drop. Then, the data were compared with the most quoted predictive methods from the literature. Based on the broad database obtained, a new method for prediction of the two-phase frictional pressure drop was proposed. The new method provided
accurate predictions of the database, predicting 89% of the results within an error band of ±20%.

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Pages : 143-163

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Détails

  • Titre original : Two-phase frictional pressure drop in horizontal micro-scale channels: Experimental data analysis and prediction method development.
  • Identifiant de la fiche : 30022341
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 79
  • Date d'édition : 07/2017
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2017.03.024

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