Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
EnergyPlus assumes zone air is well-mixed by default, so the addition of a ceiling fan would not aid in air circulation or prevent stratification any more than is already assumed. One workaround to the well-mixed assumption is to model two separate zones on top of each other with a hole (or ZoneMixing) to represent stratification within a single zone.
Adding a fan to the zone would also not affect zone pressure in the model. That's why the video you referenced only accounts for the electricity of the fan using an ElectricEquipment object, but does not account for any air circulation or increased air velocity. For the purpose of calculating thermal comfort, your assumed air velocity can be independent of the fans and equipment specified in the model.
