Modeling condensation on walls using Simscape Moist Air

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Ali
Ali 2022-10-4
编辑： Ali 2022-10-5
I am trying to model condensation in an electronic box that has a cold plate and a cover. This box can go trough various climates and under some circumstances, it will see condensation occur inside the box, either everywhere or on one of the surfaces. In some circumstances, the relative humidity next to the cold plate or the cover can reach 100% and condensation will occur, but the volume of the air inside the box is not saturated yet.
I can model the box using constant volume chamber block, but that would not capture the condensation process as I described above. Another analogy of this case is when the air inside the house is not fully saturated, but the moisture is condensing on the windows. Is there anyway to model the surface condensations?

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Yifeng Tang
Yifeng Tang 2022-10-5
Starting R2022b, the Pipe block in the Moist Air domain contains the "Effect of Condensation on Wall Surface". It's different from the condensation due to the volume vapor pressure higher than satuation.
https://www.mathworks.com/help/simscape/ref/pipema.html#mw_d8bcd9a5-7806-442c-b2c1-16a672a36ed1
For the constant volume chamber block, there isn't really a "wall" in this block. If you can represent what you try to model with a pipe block, you can use R2022b to study surface condensation.
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Ali
Ali 2022-10-5
编辑：Ali 2022-10-5
Hi Yifeng.
Thanks, that's pretty much what I'm looking for. I have already asked Mathworks to show me how we can do our modeling with such blocks.
I appreciate your help.

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