In length ventilation, the fans are mounted in the end wall and the air inlets on the sidewalls. A wide range of air volume can be generated by controlling the fan RPM and changing the positions of the air inlets.
Tunnel ventilation is often used for maximum ventilation. With the inlets located at one side of the barn and the fans located at the opposite side, air passes through the barn at high speed from the front to the back. This high airspeed creates a wind-chill effect which lowers the apparent temperature of the birds.
For cross ventilation, the fans are placed inside a sidewall. The inlets, on the other hand, are positioned in the opposite sidewall. The short distance between the inlets and the fans enables fresh air with minimum airspeed. This system allows small, but also large quantities of air exchange.
Circulation in poultry houses
Besides the ventilation methods also circulation fans are used in poultry houses. Circulation fans are mainly used to minimize temperature stratification, to improve temperature uniformity and to conserve energy. In addition, circulation fans can increase the air movement at floor level, resulting in drier litter and improved paw quality. Allowing birds to distribute themselves comfortably throughout the house.
Our Multifan and EMI fans have proven their durability and reliability in poultry barns for decades. Thanks to their high level of controllability, they can be used for either minimum or maximum ventilation. The fans are also resistant to aggressive climates and guarantee the removal of harmful substances, refreshing the air and cooling the poultry.