Variable Speed Fan (AHU)
I developed a
model with Packaged Terminal Heat Pump Air Loop with a Variable Speed Fan (Air Handler Unit).
However, the model gives constant hourly fan energy values and this does not match the actual data.
How do I get the fan energy to vary.
Attached is the hourly energy consumption of the measure and simulated model.
Update:
Here is the link to the OpenStudio Model
Comments
Are you sure that you are looking at the output variable from the correct fan? I noticed that you have a second fan on the OA intake.
(Side note: shouldn't the fan on the OA be turned upside down graphically?)
@aparker the other fan on the OA intake is an ERV system and am very sure of the output variable @Julien Marrec
@tajjmann: this is not what I meant. I just meant that graphically openstudio should probably display the fan differently, i.e. flipped so that, like your supply fan, the blade is after the box. This doesn't affect what's really being modeled by EnergyPlus
As far as troubleshooting, it would help to have your openstudio model itself if you can share it.