Tunnel ventilation is the gold standard for intensive broiler rearing in warm climates. However, simply installing large exhaust fans at one end of the building is not enough. Without precise air physics management, you risk creating ‘dead zones’ where heat accumulates, causing stress and uneven bird growth.

The Physics of Static Pressure

For air to travel at the target speed of 2.5 to 3.0 meters per second, negative pressure must be tightly regulated. If the house has air leaks or structural gaps, pressure drops, air bypasses the cooling pads, and the convective cooling effect is lost. Air tightness testing is a key parameter we measure before handover.

Preventing Corner Dead Zones

Air entering through cooling pads tends to shoot forward, creating low-velocity eddies in the front corners. Transition zones and smooth, curved ceiling baffles help guide the air directly along the bird level, ensuring the flock receives uniform cooling from front to back.