I'm trying to model the energy consumption of poultry farms in EnergyPlus.

I need to model the ventilation of a poultry farm-type building that is 12 meters wide, 100 meters long, and 4 meters high (height to ridge).

There are two ways to ventilate the farm: one is through fans (extractors) at one end and air intakes at the other; and the other is through fans that hang from the ridge of the nave.

The queries are:

1) To size the fans, you can use the

RoomAir:TemperaturePattern:UserDefined?

2) Can large fans be modeled using the Fan:VariableVolume?

3) How do you program a series of fans in the same zone in the case of hanging fans?

4) Some of these buildings are open. How do you model a hole or an open area, without walls, in EnergyPlus?

Thank you in advance. Regards.

Cecilia