Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
If you're using the ZoneVentilation:WindandStackOpenArea object, its control fields for when window openings occur are a schedule, min / max outdoor air temperatures, and max outdoor air wind speed.
Another option to account for wind and stack effects is to use Airflow Network objects instead of the Wind and Stack Open Area Ventilation object. However, this adds lots of complexity to the input file, because this asks EnergyPlus to calculate air pressure differences throughout the model every timestep and calculate the resulting air flow. I'll also note that Ventilation Control Modes for the Airflow Network look at temperature, enthalpy, ASHRAE Standard 55 Adaptive Comfort Requirements, or CEN15251 Adaptive Comfort Requirements -- not absolute or relative humidity.
If you want to incorporate controls based on outdoor air humidity, I would recommend that you keep using the Wind and Stack Open Area Ventilation object and add EMS objects to your input file to define your custom controls logic. Refer to the EMS Application Guide for more information.
