Cattle barn ventilation
Ventilation determines how much fresh air the animals get and how quickly moisture, heat and gases leave the building.
We calculate the air exchange for the specific building and stock and design a system that works in every seasonal mode.
In a cattle barn
For cattle the key is air movement at animal level and removal of moisture and gases. Fan positions and air exchange are calculated for the barn structure.
Schematic, not to scale.
How it works
Air exchange changes with the weather and the age of the animals.
In winter it is kept to a minimum so the building does not chill, in summer it is at its maximum. Between these modes the controller brings in further ventilation stages step by step.
Where the air goes matters as much as how much of it there is: incoming air should mix with the room air rather than fall on the animals as a cold stream.
What the calculation needs
If the data is sufficient, a preliminary calculation is possible before a site visit.
- Building dimensions, wall height, roof or ceiling type
- Species, number and age or weight of animals
- Region, to calculate the summer and winter modes
- Existing ventilation, if this is a reconstruction