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[EnergyPlus_Support] Problems with Zone:VentilationLWindandStackOpenArea

Hi all,

I try to simulate nightcooling by using 
Zone:VentilationLWindandStackOpenArea and by scheduling a window 
operation based on outdoor temperature and other parameters.  For the 
SurfaceConvectionAlgorithmInside, I use adaptive model. To my 
understanding, adaptive model will include the impact of ACH on 
convective heat transfer, thus I expect when the window is opened, the 
convective heat transfer should be larger compared to when the window is 
closed (No other mechanical system is on when the window is closed so 
the zone ACH should be zero) However, as I read the data, the convective 
heat transfer does not change much at the time when the window start to 
be opened and I can see that the Zone ACH is not zero. So can anybody 
tell me is there anything that I did wrong or this zone ventilation 
model is separated from the SurfaceConvection model?
Also, there is an input of opening area for this 
Zone:VentilationLWindandStackOpenArea, if this value is not zero, will 
this infect the wall area of the building for such zone? (Real wall 
area= wall area- opening area) Since I already draw the windows in 
Sketchup, and still need to define the opening area here within this model.

Many thanks,

HJ


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