Moisture Flux

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Masoud Valinejad
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Joined: Fri Jan 18, 2019 6:06 am -1100

Moisture Flux

Post by Masoud Valinejad » Thu Jan 31, 2019 3:55 pm -1100

I want to compare Moisture and heat flux of two wall.
Please see the picture of results.
I don't know why one of them is positive in moisture flux in both left and right.
Could you please help me to compare them with each other, I want to select a proper one which has less moisture durability and mold growth risk.

Thank You
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case 1
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case 2
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Christian Bludau
WUFI SupportTeam IBP
WUFI SupportTeam IBP
Posts: 834
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Location: IBP Holzkirchen, the home of WUFI
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Re: Moisture Flux

Post by Christian Bludau » Thu Jan 31, 2019 9:10 pm -1100

Hi Masoud,

the positive or negative value defines the direction of the fluxes.
Positive fluxes are directed to the right side (so for the exterior surface (left side) they are directed into the construction and on the interior surface (right side) they are directed into the room.
Negative fluxes are directed to the left side.

By the way: For WUFI 2D the positive definition is right and up, negative is left and down.

This topic was also discussed here:
https://www.wufi-forum.com/viewtopic.php?f=6&t=288

Christian

Masoud Valinejad
WUFI User
WUFI User
Posts: 7
Joined: Fri Jan 18, 2019 6:06 am -1100

Re: Moisture Flux

Post by Masoud Valinejad » Fri Feb 01, 2019 6:10 am -1100

Christian Bludau wrote:
Thu Jan 31, 2019 9:10 pm -1100
Hi Masoud,

the positive or negative value defines the direction of the fluxes.
Positive fluxes are directed to the right side (so for the exterior surface (left side) they are directed into the construction and on the interior surface (right side) they are directed into the room.
Negative fluxes are directed to the left side.

By the way: For WUFI 2D the positive definition is right and up, negative is left and down.

This topic was also discussed here:
https://www.wufi-forum.com/viewtopic.php?f=6&t=288

Christian
Thank you dear christian,

So, if the moisture flux in left and right both are positive, the exterior insulation may no be proper, correct?

and another question is thta, is it possible in WUFI to find dewpoint temperature of the interior air?

Christian Bludau
WUFI SupportTeam IBP
WUFI SupportTeam IBP
Posts: 834
Joined: Tue Jul 04, 2006 10:08 pm -1100
Location: IBP Holzkirchen, the home of WUFI
Contact:

Re: Moisture Flux

Post by Christian Bludau » Sun Feb 03, 2019 9:37 pm -1100

Hi Masoud,
yes, that is meaning that your heat flow summed up over the time is directed to the inside.
In WUFI it is not possible to get the dew point of the boundary condition.
Christian

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