Search found 3 matches

by marco.larcher
Tue May 03, 2022 10:01 pm -1100
Forum: Material
Topic: Moisture Storage Function - 3 point formula
Replies: 1
Views: 5364

Moisture Storage Function - 3 point formula

Dear IBP, typically moisture moisture storage function is based on few measured values (0.65, 0.80, 0.93, 0.97, free saturation) while the rest of the points are interpolated (0.99, 0.995, 0.999, 0.9995, 0.9999). According to the "Material Information" I see that a 3 point formula is used....
by marco.larcher
Tue May 18, 2021 9:18 pm -1100
Forum: WUFI Pro
Topic: Vapor Surface transfer coefficients
Replies: 3
Views: 3974

Re: Vapor Surface transfer coefficients

Thanks for your reply Thomas. Would it be possible to know how it is derived from the convective heat transfer coefficient? Do you use the Lewis relation? And how is the overall Heat Transfer Coefficient split in the convective part and the radiative part, for instance when one uses the User Defined...
by marco.larcher
Thu May 13, 2021 3:32 am -1100
Forum: WUFI Pro
Topic: Vapor Surface transfer coefficients
Replies: 3
Views: 3974

Vapor Surface transfer coefficients

Hello, is it possible to set the value of the Vapor Transfer Coefficients in WUFI? In know it is possible to add an additional Sd value to include the effects of coating but I guess that this adds to the equivalent vapour diffusion thickness of the "basic" boundary layer. I am personally i...