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Simulation numérique de la séparation des constituants et du transfert de masse de mélanges éotropes binaires dans une jonction en T ramifiée.

Numerical simulation on constituent separation and mass transfer of binary zeotropic mixtures in a branching T-junction.

Auteurs : SU D., ZHAO L., ZHAO R., BAI M., WANG Q., ZHU Y.

Type d'article : Article de la RIF

Résumé

The study of constituent separation in T-junction is important to realize the operation of the constituent adjustable system. This paper presents a numerical simulation on the constituent separation and mass transfer of R134a and R600a in T-junction. The multiphase flow model of volume of fluid (VOF) is adopted, and the interphase mass transfer of R134a and R600a is achieved by adding source terms in governing equations. The quality at inlet varies from 0.51 to 0.92. The mass flow rate at inlet and flow rate weighting of branch outlet are 10 g⋅s−1 and 0.3, respectively. Results show that the error of numerical simulation with mass transfer is lower than that of numerical simulation without mass transfer. When the quality at inlet is 0.81, the error of numerical simulation with mass transfer can be reduced by 50.07% compared with the numerical simulation without mass transfer. The higher the quality at inlet, the higher the separation efficiency of R134a when the quality at inlet is less than 0.81. When the quality at inlet is 0.81, the separation efficiency of R134a in the numerical simulation with mass transfer is the largest, whose value is 1.47%. Most of the flow patterns are annular flow. The pressure and flow pattern have an important influence on the constituent separation and the interphase mass transfer rate. A correlation with 10% error band of interphase mass transfer for annular flow in T-junction is proposed.

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Format PDF

Pages : 198-207

Disponible

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    20 €

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Détails

  • Titre original : Numerical simulation on constituent separation and mass transfer of binary zeotropic mixtures in a branching T-junction.
  • Identifiant de la fiche : 30029377
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 135
  • Date d'édition : 03/2022
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2021.12.010
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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