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Performance en terme d'encrassage du côté eau des condenseurs à plaques brasées pour les applications des tours de refroidissement.

Waterside fouling performance in brazed-plate-type condensers for cooling tower applications.

Auteurs : CREMASCHI L., SPITLER J. D., LIM E., et al.

Type d'article : Article

Résumé

This article presents a new experimental methodology and results of the waterside thermal hydraulic performance of brazed-type condensers under fouling operating conditions. High water fouling potential was developed to create conditions that cause severe precipitation and particulate fouling during the experiments; corrosion and biological fouling were intentionally prevented by chemical inhibitors. Among other advantages, this new methodology is independent from the geographical location of the laboratory and from the local water supply source. Using this technique, a Langelier saturation index of the water of about 3-3.5 was achieved, which represents very severe fouling conditions. Four brazed-plate heat exchangers were tested, and a maximum reduction in heat flux of 28% and a maximum increase in pressure drop of 250% illustrate the potentially critical impairment of the heat exchanger thermal hydraulic performance.

Détails

  • Titre original : Waterside fouling performance in brazed-plate-type condensers for cooling tower applications.
  • Identifiant de la fiche : 30000815
  • Langues : Anglais
  • Source : HVAC&R Research - vol. 17 - n. 2
  • Date d'édition : 04/2011
  • DOI : http://dx.doi.org/10.1080/10789669.2011.555492

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