ACH for a ventilated cavity

eordner · Post by **eordner** » Tue Oct 30, 2007 5:13 am -1100

I'm modeling a wall system with a terra cotta rainscreen and would like to model the cavity behind the rainscreen with an Air Change Source. What is the appropriate way to approximate a ventilated cavity? (i.e.- accurate values for ACH) Also, does WUFI read excel files for the air change source?

Manfred Kehrer · Post by **Manfred Kehrer** » Tue Oct 30, 2007 5:57 am -1100

There is an example file (AirChangeRate.txt) in the project folder and also a Example Project (Example_USA_Leakage_Vent.w4p) showing you how to do it.

Talev · Post by **Talev** » Tue Dec 06, 2011 9:12 pm -1100

Dear WUFI users,

I am wondering if there any who can tell me where can I find example file (AirChangeRate.txt) in the project folder and also a Example Project (Example_USA_Leakage_Vent.w4p)? I get a signal that it shows how I can do ACH txt file.

I look forward to hering from you!

Regards,

Talev

I hvae found solutions

Christian Bludau · Post by **Christian Bludau** » Tue Dec 06, 2011 10:52 pm -1100

Hi Talev,

you can find the files in your program folder under \IBP-Software\WUFI5\Projects\.

The AirChangeRate.txt is a simple ASCII File with two columns, first one is time [h] and second one airchange in [1/h].
For specific information see the help file in the sources section.

Best regards,
Christian