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Caractéristiques optimales de la pulvérisation dans le refroidissement par pulvérisation.

Optimal spray characteristics in water spray cooling.

Auteurs : CHEN R. H., CHOW L. C., NAVEDO J. E.

Type d'article : Article

Résumé

The dependence of the efficiency of liquid usage at CHF (critical heat flux) on spray parameters was experimentally investigated for subcooled water spray cooling. A spray can be characterized by three independent parameters (droplet Sauter-mean diameter, droplet velocity, and droplet flux). In the study, each of these parameters was varied with the other two kept constant by using a combination of spray nozzles, operating pressures, and distance between the nozzle exit and the heater surface. It was concluded that to achieve the maximum possible CHF while using the minimum quantity of water, it is desirable to select nozzles that produce the smallest possible droplet diameter with the highest velocity possible.

Détails

  • Titre original : Optimal spray characteristics in water spray cooling.
  • Identifiant de la fiche : 2005-1168
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 47 - n. 23
  • Date d'édition : 11/2004

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