[TRNSYS-users] questions about humidity model in Trnbuild

[Yujun TAO]

Dear users,
I have a simulation of humidity to do recently, it's about a test of material, we will use WUFI to do a detailed simulation and then couple with TRNSYS manuelly. So my first question is : Dose someone have already done this kind of thing? if yes, what kind of method have you done?
2nd question: in the manuel of type 56, there is a parameter named "beta" (β, the exchange coefficient), there are 2 kinds: βsurf and βdeep. what's the unit? I guess its kg/h, it that true? Then, what's the source information about β' (12m/h)? 

3rd question: is there an error in the formula M=2dAρ? why is there a "2"?
4th question: in the example of buffer storage, βsurf and βdeep are calculated directly with the empirical values: 3 kg/m²h and 1 kg/m²h. Why they are not developped with the equations 6.4.3-8 and 6.4.3.-9?
I found there was few discussions about this subjet in the forum. So any kind of suggestion whatever is welcomed.

TAO Aleck
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