Search found 8 matches

by Antoine
Fri Aug 18, 2017 1:53 am -1100
Forum: WUFI 2D
Topic: High water content in mineral wool that is in contact with internal air
Replies: 3
Views: 10006

Re: High water content in mineral wool that is in contact with internal air

Hello
thanks for the reply.
To answer : on the exterior side, we use the weather file of Grenoble. There is no rain absorption (due to the cladding).

Clearly there are condensations risks (even shown by Glaser method), but those high values were striking me.

Antoine
by Antoine
Wed Aug 16, 2017 4:06 am -1100
Forum: WUFI 2D
Topic: High water content in mineral wool that is in contact with internal air
Replies: 3
Views: 10006

High water content in mineral wool that is in contact with internal air

Hello all,

I used WUFI a long time ago, and almost did not touch it last few years. I am doing a pretty "basic" modelling of an insulated timber frame wall with a ventilated cladding. The question I have is not related to the ventilated gap and the drying, but more to the internal side and a ...
by Antoine
Fri Mar 26, 2010 4:34 am -1100
Forum: General
Topic: Evaluation of the risks due to humidity on the interior surf
Replies: 1
Views: 5500

Evaluation of the risks due to humidity on the interior surf

Hi,

I am assessing the risks due to humidity in a wall with a new isolation layer (interior side).
An approach is to see the evolution of the water content in the wall and in each layer. I did it.
To use the isopleth, we have to consider the interior layer (in my case cement plaster). But the ...
by Antoine
Thu Mar 04, 2010 4:13 am -1100
Forum: Material
Topic: Heat conductivity of moist materials
Replies: 6
Views: 16038

Thank you very much for this help.

Another question :
I want to evaluate the Cp (H Cap) of my material considering water. As the Cp of water is different if it is vapor o liquid, I need to know the quantity of liquid water and the quantity of vapor.
Continuing with the same example of the plaster ...
by Antoine
Wed Mar 03, 2010 6:53 am -1100
Forum: Material
Topic: Heat conductivity of moist materials
Replies: 6
Views: 16038

Hello,

I would like to use the wufi database to calculate the conductivity for a material considering the water content.
I read your answer. In the WUFI database, I can see the "Hygric Extensions" but I can't add values in the table. I can't check the "generate" button.

And the normalized water ...
by Antoine
Wed Mar 03, 2010 2:27 am -1100
Forum: WUFI 2D
Topic: Graph for WUFI 2D
Replies: 16
Views: 71095

Hello,
I suffer the same problem.
When I quit wufi 2d, I have the same error.
I use Windows 7, 32bits.

regards,
Antoine
by Antoine
Wed Jan 13, 2010 6:40 am -1100
Forum: General
Topic: Modeling wall with air cavities
Replies: 1
Views: 5553

Here is an image to show better the composition of the wall.
Image
by Antoine
Wed Jan 13, 2010 6:37 am -1100
Forum: General
Topic: Modeling wall with air cavities
Replies: 1
Views: 5553

Modeling wall with air cavities

I am confronted to a problem due to the modeling of a wall with air cavities. This wall is part of a 19th century building. It is made of limestone, mortar and another part of limestone.

The mortar is between the rocks of limestone. But the density (in volume) of this mortar is something like 50 ...