Error in Simulating the ZoneHVAC:LowTemperatureRadiant:VariableFlow (AutoSizing)

asked 2021-08-02 07:29:57 -0600

Engr.Samiullah gravatar image

updated 2021-08-17 11:20:39 -0600

I am trying to simulate the ZoneHVAC:LowTemperatureRadiant:VariableFlow with autosizing on in OpenStudio. But getting this severe error "Hydronic radiant systems may not be autosized without specification of nodes or schedules" . Although , I have mentioned the both the nodes and schedules . I searched on net and found this thing "https://github.com/NREL/EnergyPlus/co..." but don't know how to use this and correct the source code of installed EnergyPlus and OpenStudio. Can anybody help me?

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Comments

The bugfix you referenced addresses this bug, which says that it's only an issue for cooling-only radiant systems. Do you have a cooling-only radiant system?

shorowit gravatar image shorowit  ( 2021-08-03 11:59:52 -0600 )edit

Yes ; It is cooling-only radiant system

Engr.Samiullah gravatar image Engr.Samiullah  ( 2021-08-03 12:04:57 -0600 )edit

Perhaps you could work around the issue by adding heating, but disable the heating from being available/used?

shorowit gravatar image shorowit  ( 2021-08-03 12:07:54 -0600 )edit

For that , I have to specify the hot water loop . But I want to know direct solution of this bug.

Engr.Samiullah gravatar image Engr.Samiullah  ( 2021-08-03 12:17:48 -0600 )edit

Mr. Shorowit can you help me on this

Engr.Samiullah gravatar image Engr.Samiullah  ( 2021-08-14 11:53:46 -0600 )edit