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CFD simulation and experimental validation of ethanol adsorption onto activated carbon packed heat exchanger.

Simulation par la mécanique numérique des fluides (CFD) et validation expérimentale de l’adsorption de l’éthanol sur un échangeur de chaleur compact à charbon actif.

Auteurs : JRIBI S., MIYAZAKI T., SAHA B. B., et al.

Type d'article : Article, Article de la RIF

Résumé

Experimental validation of simulated adsorber/desorber beds for sorption cooling applications is essential to obtain reliable results. We have conducted rigorous simulation of the adsorption process occurring in a finned tube adsorber utilizing 2D-axisymmetric geometry. The adsorber uses activated carbon–ethanol as adsorbent–refrigerant pair. It is cooled with water at nearly 30?°C and experiencing a sharp pressure increase of ethanol from 0.95?kPa initially to 6?kPa. The simulated temperatures at adsorbent thicknesses of 0, 1, 5 and 10?mm from tube outer diameter showed an increase in adsorbent temperature up to 20 °C from its initial temperature. They were slightly higher at start of adsorption and were consistent with experimental data at higher flow time. The validated CFD model will serve as a base for evaluating and optimizing activated carbon–ethanol adsorption cooling cycle. It can be extended also to different adsorber designs and other adsorbent–adsorbate pairs.

Documents disponibles

Format PDF

Pages : 343-351

Disponible

  • Prix public

    11 €

  • Prix membre*

    8,50 €

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Détails

  • Titre original : CFD simulation and experimental validation of ethanol adsorption onto activated carbon packed heat exchanger.
  • Identifiant de la fiche : 30020116
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 74
  • Date d'édition : 02/2017

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