Hi All,
Does anybody know if you can model an air curtain in IES.
I am looking to model an air curtain on the main entrance to a space to reduce conditioned air escaping.
If anybody know is this can be done and can advise on how to proceed it would be very much appreciated.
Thanks
Barry
Modelling an Air Curtain
Re: Modelling an Air Curtain
Here’s how we would suggest you handle air curtains...
1) Cut a 2 meter zone for both the entrance areas and remove the partitions so that the zones are connected to the circulation area.
2) Within these 2 zones (let’s call them the curtain heater zones) apply a limited amount of heating based on the maximum output of the curtain heaters (say 3kw for example) this can be set in the building template manager in the system tab, un-tick the unlimited tick box & apply the limited load. The room heating set point temperature for these zones must be set to a high value so that the curtains are always running at their full capacity (40degC?) you may have to run some test simulations to identify this value.
Hot air from the curtain zone will now spill into the circulation zone & you can analyse what sort of temperatures you are achieving within these areas.
I would also recommend that you apply a macroflo opening to this entrance zone to take account of large amounts of air entering into the space due the doors opening, also this air will push the hot air from the heated zone into the circulation area.
The above approach will only work outside of the compliance module due to compliance set point temperature restrictions. In order to account for air curtains in VE compliance I would setup a simple heating system & assign it to the required zones.
1) Cut a 2 meter zone for both the entrance areas and remove the partitions so that the zones are connected to the circulation area.
2) Within these 2 zones (let’s call them the curtain heater zones) apply a limited amount of heating based on the maximum output of the curtain heaters (say 3kw for example) this can be set in the building template manager in the system tab, un-tick the unlimited tick box & apply the limited load. The room heating set point temperature for these zones must be set to a high value so that the curtains are always running at their full capacity (40degC?) you may have to run some test simulations to identify this value.
Hot air from the curtain zone will now spill into the circulation zone & you can analyse what sort of temperatures you are achieving within these areas.
I would also recommend that you apply a macroflo opening to this entrance zone to take account of large amounts of air entering into the space due the doors opening, also this air will push the hot air from the heated zone into the circulation area.
The above approach will only work outside of the compliance module due to compliance set point temperature restrictions. In order to account for air curtains in VE compliance I would setup a simple heating system & assign it to the required zones.