Marley Round Tirage Forcé

Reduced power consumption, favorable space requirements, minimized recirculation effects, optimum operational behavior for salt water application and the aesthetic look are only some advantages of round cooling towers with forced draft fans.

Principle of Circular Cooling Towers with Forced Draft Fans
The hyperbolic shell achieves a natural draft effect which supports the fans arranged around the circumference of the cooling tower shell. Therefore the power consumption of the fans is reduced. The cooling tower is separated in different sections, which can be isolated, to ensure operation with lower water quantities. Also maintenance activities can be accomplished in shut-off sections while the rest of the cooling tower is still in operation.

Réduction des coûts d'exploitation
Comme l'effet de tirage naturel soutient les ventilateurs, la consommation d'énergie est réduite. Des coûts d'exploitation considérablement réduits sont obtenus notamment grâce à l'utilisation de moteurs à deux vitesses.

Élimination des effets de recirculation
The plume is conducted by the higher shell, therefore the recirculation effect is eliminated. In contrary to the cell-type cooling towers where the risk of the plume falling on the ground and being drawn into the cooling tower must be considered.

Application d'eau salée
The higher rise of the plume results in a wider dispersion. That means for seawater application the salt particles are also better distributed in the air and the resulting salt concentration on the ground is considerably reduced.

Espace requis
The recirculation effect needs not to be taken into account for circular cooling towers therefore the space requirements are reduced. Also the circular shape is more favorable in comparison to cooling tower rows located in defined distances.