Why no HVAC sizes in OpenStudioResults ?

asked 2020-07-28 10:40:58 -0600

TheEnergyTutor gravatar image

updated 2020-07-31 08:27:56 -0600

Why can't i get the HVAC sizing results in the OpenStudioResults measure? They are in energy plus fine. See photos. It also reports "hard-sized" but everything is set to "autosize"

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anybody know why or how to fix it?

TheEnergyTutor gravatar imageTheEnergyTutor ( 2020-08-03 13:44:17 -0600 )edit

What version of openstudio are you using? It's possibly related to this issue https://github.com/NREL/EnergyPlus/is..., default field change in EnergyPlus, which created some issues in OpenStudio API were it would not run plant sizing if the default settings were used.

mdahlhausen gravatar imagemdahlhausen ( 2020-08-03 17:25:55 -0600 )edit

I didn't see this comment until now, I am using OpenStudio Application version 1.0

TheEnergyTutor gravatar imageTheEnergyTutor ( 2020-08-10 08:34:20 -0600 )edit

I read the post, it is a lot of computer programmer stuff. I'm trying to engineer HVAC systems, and I am not a computer programmer and don't want to be. Can someone fix this so i can use OS for what it was designed for?

TheEnergyTutor gravatar imageTheEnergyTutor ( 2020-08-10 08:37:24 -0600 )edit

There was a change in plant loops in EnergyPlus that omitted plant sizing under certain selections - make sure you run plant sizing in your model. There was also an update to the results reporting measure which I believe should have fixed this issue. Make sure you have the most recent version of the measure download from BCL. This isn't tied to the version of the openstudio application.

mdahlhausen gravatar imagemdahlhausen ( 2020-08-24 13:37:24 -0600 )edit