Hi all,

I would appreciate if anyone can correct me on my interpretation of the Viper' in the attach files:

I give this error when use interior walls:

1. Zone breps do not form a single closed volume (JoinBreps returned more than one object).

Thanks.

S.Ali

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S.Ali,

The zone geometry should only include the boundary of the zone.  Interior partitions within a zone cannot be modeled in Viper.

Jon

Thank you jan 

Is there any way to analysis interior walls by Diva in Grasshopper?

Not for thermal simulations.   Your two options are 1) breaking the model into smaller zones, and looking at each individually; or 2) introducing a thermal mass object into the zone to represent the partitions.  The second option can't really be done through Viper, but a solution could be "hacked" by editing the base IDF with something like:

InternalMass01, !- Surface Name
ContructionAssemblyName, !- Construction Name
ZONE1, !- Zone
408.7734 ; !- Total area exposed to Zone {m2}

(The base IDF is "C:\DIVA\Thermal\Grasshopper\IDF_Components\v2.007\00_base_file.idf")

Jon


thank you jon. I am going to fix it
Jon Sargent said:

Not for thermal simulations.   Your two options are 1) breaking the model into smaller zones, and looking at each individually; or 2) introducing a thermal mass object into the zone to represent the partitions.  The second option can't really be done through Viper, but a solution could be "hacked" by editing the base IDF with something like:

InternalMass01, !- Surface Name
ContructionAssemblyName, !- Construction Name
ZONE1, !- Zone
408.7734 ; !- Total area exposed to Zone {m2}

(The base IDF is "C:\DIVA\Thermal\Grasshopper\IDF_Components\v2.007\00_base_file.idf")

Jon

Hi Jon

I can't  to open and editing base IDF file. could you give me more explain to fix it?

Seyed Ali Derazgisoo said:


thank you jon. I am going to fix it
Jon Sargent said:

Not for thermal simulations.   Your two options are 1) breaking the model into smaller zones, and looking at each individually; or 2) introducing a thermal mass object into the zone to represent the partitions.  The second option can't really be done through Viper, but a solution could be "hacked" by editing the base IDF with something like:

InternalMass01, !- Surface Name
ContructionAssemblyName, !- Construction Name
ZONE1, !- Zone
408.7734 ; !- Total area exposed to Zone {m2}

(The base IDF is "C:\DIVA\Thermal\Grasshopper\IDF_Components\v2.007\00_base_file.idf")

Jon

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