Greenhouse Fans, Poultry Farming Equipment Exhaust Fan, Best Greenhouse Exhaust Fan

Poultry ventilation Ridge ventilation In ridge ventilation, the fans are mounted in ducts that are placed in the ridge of the roof and the air inlets are located in the sidewalls of the barn. This type of ventilation is usually only used for minimum ventilation. Longitudinal ventilation 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 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. Cross ventilation 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.

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