Partager

Traitement physique de l'eau pour atténuer l'encrassement minéral dans les applications à eau des tours de refroidissement.

Physical water treatment for the mitigation of mineral fouling in cooling-tower water applications.

Auteurs : CHO Y. I., LEE S. H., KIM W.

Résumé

The physical water treatment (PWT) device is defined as a non-chemical method of water treatment utilized for the purpose of scale prevention or mitigation. Three different PWT devices, including permanent magnets, a solenoid coil device, and a high-voltage electrode, were used under various operating conditions. The study proposed a bulk precipitation as the mechanism of the PWT and conducted a number of experimental tests to evaluate the performance of the PWT. The results of fouling resistances obtained in a heat transfer test section clearly demonstrated the benefit of the PWT when the PWT device was configured at an optimum condition. The results of SEM and X-ray diffraction methods were obtained to further examine the difference in scale crystal structures between the cases of no treatment and PWT. Furthermore, the surface tension of water samples was measured, and it was found that the PWT reduces the surface tension by approximately 8% under repeated treatment as in cooling-tower applications.

Détails

  • Titre original : Physical water treatment for the mitigation of mineral fouling in cooling-tower water applications.
  • Identifiant de la fiche : 2005-1206
  • Langues : Anglais
  • Source : ASHRAE Transactions. 2003 Winter Meeting, Chicago, Illinois. Volume 109, part 1 + CD-ROM.
  • Date d'édition : 2003

Liens


Voir d'autres communications du même compte rendu (32)
Voir le compte rendu de la conférence

Indexation