Hello,
I'm a student using IES to evaluate passive building techniques in tropical countries, part of which uses jute sacking. I may have missed something in the User Guides and tutorials, but is there a way to make a custom material with a level of air permeability?
Another issue I'm having is with extracting useful results on human comfort levels. Is it possible to zone a room into two areas, one up to the average height of a human (say 1.75m) and another above this, where comfort levels are not important?
Apologies if I've been unclear, thanks for any help you can give.
Miles Fenton
Air Permeability of Materials
Re: Air Permeability of Materials
Hi Miles,
1) I don't think the materials can have any permeability to them at all. The walls within IES are all 100% opaque and can have neither a level of permeability or visual transparency.
It's a tough one, I've never done anything like it to be honest. Maybe setting up a mad crack coefficient in MacroFlo and having many doors to represent areas of sacking? Not sure.
2) Yes. Not sure why you are doing it this way but I think you can do what you want like this
• Go into ModelIT
• Select the room
• push the down arrow to move into the room
• Change to Edit mode
• Switch to Z plane
• Select height (1.75)
• Create cutting plane
• divide space (no partitions)
• Separate space
You can then consider the two spaces as distinct zones - apply whatever thermal props you want.
1) I don't think the materials can have any permeability to them at all. The walls within IES are all 100% opaque and can have neither a level of permeability or visual transparency.
It's a tough one, I've never done anything like it to be honest. Maybe setting up a mad crack coefficient in MacroFlo and having many doors to represent areas of sacking? Not sure.
2) Yes. Not sure why you are doing it this way but I think you can do what you want like this
• Go into ModelIT
• Select the room
• push the down arrow to move into the room
• Change to Edit mode
• Switch to Z plane
• Select height (1.75)
• Create cutting plane
• divide space (no partitions)
• Separate space
You can then consider the two spaces as distinct zones - apply whatever thermal props you want.