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

asked 3 years ago

Engr.Samiullah's avatar

updated 3 years ago

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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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's avatar shorowit  ( 3 years ago )

Yes ; It is cooling-only radiant system

Engr.Samiullah's avatar Engr.Samiullah  ( 3 years ago )

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

shorowit's avatar shorowit  ( 3 years ago )

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

Engr.Samiullah's avatar Engr.Samiullah  ( 3 years ago )

Mr. Shorowit can you help me on this

Engr.Samiullah's avatar Engr.Samiullah  ( 3 years ago )