Hi!
The formula EnergyPlus uses for stack effect in ventilation is as follows: Qs=Cd * Opening Area * Schedule * SQRT(2gDH*(|(Tzone-Todb)|/Tzone))
The DH (referred as as "ΔHNPL" in the Inputoutput reference ) is defined as the height difference between the midpoint of an opening and the neutral pressure level. But EnergyPlus has considered the value of zero as default.
Doesn't this value of zero, makes the whole formula zero and consequently Qs=0?
Thanks a lot in advance!
