fan schedule not working
I'm doing research about heat recovery in data center, sensible heat from datacenter was tranported to rooms in winter to saving energy. Fans: VariableVolume have been added between OA Mixing box in datacenter and Plenums in occupied rooms. But when I changed the schedule of fans, output data shows a same energy consumption as before. Then I checked the system node mass flow rate, which is constant when I revised the schedule of fans. Where could the error occur in my model?Any suggestions will be appreciated.
The SVG and IDF file was there. Origin file based on PNNL Large Office building. https://drive.google.com/drive/folder...
@Cold wong could you include a diagram of the HVAC system that you're modeling, and/or some tables/plots to show what output data is the same between runs? It looks like the
Fan:VariableVolumeobject only has one schedule input field for availability, so perhaps the fan only needs to run during the periods you've set in both runs.Thanks @Aaron Boranian, question has been revised.
@Cold wong your Drive link requires access permission. Consider changing to a public link, and include the IDF. But based on the information so far, I'd guess that your air handler is operating based on load, and there is a 24-hr load in the data center, so the air handler needs to operate continuously to meet the space setpoint. Even if your setpoint schedule has night time setbacks, if the equipment loads are continuous, and you have night cycling on your AHU, then the AHU will operate through the night to meet setpoint regardless of fan schedule.