We have a (1-storey) project where each zone has a thermal labyrinth underneath its floor. There is a natural ventilation mode where air enters the zone from the labyrinth via a floor grille and is exhausted through a solar fan in the ceiling; and, there is a mechanical ventilation mode with an HVAC system that has a separate outdoor air supply + VRF. The system can only be in one or the other state.
A wind engineer has done CFD studies on the thermal labyrinth to derive a model that predicts the air temperature at the labyrinth outlet (i.e. the inlet to the zone) according to the time of day and outdoor DBT.
The way I am trying to model the labyrinth is by making it part of the mechanical system in Ironbug. I am currently looking for a way to create a schedule for the outdoor air intake temperature of the air loop - does this option exist? My plan would be to use the EMS to create a control algorithm that defines the intake temperature as per the CFD-derived formula for natural ventilation mode, and to leave it at the outdoor DBT for the mechanical ventilation mode.
Does this make sense to you, and is this possible in Ironbug? Or, can you think of an easier way to model it? Any advice would be much appreciated.