I have a question regarding how air changes get exported to openstudio and energyplus. I am working on a hospital project that has to meet certain ventilation requirements. I been using the HB ACH component to apply my required air changes
The question I have though is regarding the structure of how things get translated to energyplus / IDF. My model has 19 different space types (over 300 zones) with different air change requirements and 22 mechanical units. When I checked the idf file I was expecting to see either 19 objects (for each space type) or over 300 objects (representing each individual zone) in the IDF input called “DesignSpecification:OutdoorAir”, but instead I only see 9. These 9 DSOA objects get distributed to all zones through the IDF input called “Controller:MechanicalVentilation”. That controller input has 22 objects representing the 22 mechanical units which is what I would expect.
So I am trying to find a solution on to how to properly export my DSOA objects, so that I can have the 19 ACH values exported rather than just 9. I do not understand why the model chose those 9 nor what happened to the other 10.
Is each setzoneEPloads components that has an incoming value from the ACH component supposed to export as one object in the “DesignSpecifcation:OutdoorAir” input? or is there another way these objects gets exported?
and just to clarify I export my Honeybee models using the openstudio export component.
Thanks in advance.