Document IIF

Chute de pression lors de l'ébullition en écoulement à l‘intérieur de microcanaux parallèles.

Pressure drop during flow boiling inside parallel microchannels.

Auteurs : DARIO E. R., PASSOS J. C., SÁNCHEZ SIMÓN M. L., et al.

Type d'article : Article, Article de la RIF

Résumé

Pressure drop is experimentally investigated inside parallel microchannels during subcooled flow boiling of R134a in horizontal orientation. The test conditions included the inlet pressure, the inlet subcooled degree, the heat flux, the vapor quality, and the mass velocity, ranging from 600 to 900?kPa, 1 to 20?K, 5 to 220?kW?m-2, 0 to 95% and 250 to 1000?kg m-2?s-1, respectively. The effect of the mass velocity and the inlet pressure were investigated. The relative weight of the pressure drop due to two-phase flow acceleration and the friction pressure drop for single phase and two-phase flows were considered. The experimental results for the pressure drop were compared with those predicted by the homogenous model and five other semi-empirical models.

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Format PDF

Pages : 111-123

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Détails

  • Titre original : Pressure drop during flow boiling inside parallel microchannels.
  • Identifiant de la fiche : 30019869
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 72
  • Date d'édition : 12/2016

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