Exhaust Fan

In order to compensate the volume of incoming product the roof of the silo must be equipped with vents allowing for the expulsion of the existing air. The same is required in reverse when the silos are emptied. SIMEZA silos are standard equipped with circulation vents. When the silo is equipped with an aeration system and forced ventilation, the number, the total section, and the layout of the vents must be designed to allow for the homogeneous exit of the forced air without creating counter pressure. The SIMEZA aeration system includes the supply of additional roof air vents designed as above. The air leaving the stored product as a consequence of the forced aeration is usually warm and humid and can allow for water condensation on the cooler lower surface of the roof. This water will run along the inclined roof surface and affect the upper product at the periphery of the silo. In order to prevent this problem, the SIMEZA product range includes electrical extraction fans. These are installed in the roof in order to create an accelerated air flow along the lower surface of the roof and inhibit condensation.