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Recherche CFD du processus de concentration par atomisation à contre-courant dans un système de traitement des eaux usées salines à séparation du sel par évaporation à l’air chauffé à l’énergie solaire.

CFD research of the counter-flow spray concentration process in solar energy - air evaporating separation saline wastewater treatment system.

Numéro : pap. n. 631

Auteurs : YU J., JIN S.

Résumé

The spray concentration tower plays an indispensable role in solar energy - air evaporating separation saline wastewater treatment system. The heat and mass transfer performance of the counter-flow spray concentration process is investigated in this paper. The CFD model is established for studying the heat and mass transfer performance of this process under different working conditions and the experiment research is carried out to prove the simulation. The influence of air flow rate and different heating form are also discussed. The results show that the maximum relative errors between the experiment and simulation results of the outlet air temperature, the outlet wastewater temperature and the outlet air relative humidity are 2.58%, 2.92% and 5.94%, respectively. Increasing the temperature of supplied air and spraying brine is beneficial to accelerating the concentration rate. In addition, when wastewater is used as the heat carrier, the evaporation efficiency (EE) becomes higher.

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Format PDF

Pages : 8

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    20 €

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Détails

  • Titre original : CFD research of the counter-flow spray concentration process in solar energy - air evaporating separation saline wastewater treatment system.
  • Identifiant de la fiche : 30026012
  • Langues : Anglais
  • Source : Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Date d'édition : 24/08/2019
  • DOI : http://dx.doi.org/10.18462/iir.icr.2019.0631

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