Re: [EnergyPlus_Support] Shading fins problem with reflectance

["Linda Lawrie linda@xxxxxxxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>]

Though you name the fins as Zn001:Wall001:Shade003, etc,
because internally it creates two for each entry (bi-directional
shading), you need to have the correct name entered for the reflection
item.

ShadingProperty Reflectance,ZN001:WALL001:SHADE003
Left,Shading,0.20,0.20,0.00, N/A
ShadingProperty Reflectance,Mir-ZN001:WALL001:SHADE003
Left,Shading,0.20,0.20,0.00, N/A
ShadingProperty Reflectance,ZN001:WALL001:SHADE003
Right,Shading,0.20,0.20,0.00, N/A
ShadingProperty Reflectance,Mir-ZN001:WALL001:SHADE003
Right,Shading,0.20,0.20,0.00, N/A

so you need to have two (or possibly four) reflection properties for each
fin.

If you change your objects

ShadingProperty:Reflectance,
    Zn002:Wall002:Shade002,  !- Shading Surface
Name
   
0.2,                    
!- Diffuse Solar Reflectance of Unglazed Part of Shading Surface
   
0.2;                    
!- Diffuse Visible Reflectance of Unglazed Part of Shading
Surface

to 
ShadingProperty:Reflectance,
    Zn002:Wall002:Shade002 Left,  !- Shading Surface
Name
   
0.2,                    
!- Diffuse Solar Reflectance of Unglazed Part of Shading Surface
   
0.2;                    
!- Diffuse Visible Reflectance of Unglazed Part of Shading
Surface

ShadingProperty:Reflectance,
    Zn002:Wall002:Shade002 Right,  !- Shading Surface
Name
   
0.2,                    
!- Diffuse Solar Reflectance of Unglazed Part of Shading Surface
   
0.2;                    
!- Diffuse Visible Reflectance of Unglazed Part of Shading
Surface

should have fixed it but it didn't.

and actually, if you look at the .eio file, the proper reflectances are
being used?

ShadingProperty Reflectance,ZN001:WALL001:SHADE003
Left,Shading,0.20,0.20,0.00, N/A
ShadingProperty Reflectance,Mir-ZN001:WALL001:SHADE003
Left,Shading,0.20,0.20,0.00, N/A
ShadingProperty Reflectance,ZN001:WALL001:SHADE003
Right,Shading,0.20,0.20,0.00, N/A
ShadingProperty Reflectance,Mir-ZN001:WALL001:SHADE003
Right,Shading,0.20,0.20,0.00, N/A

I will look further to see what the exact problem is and report it to the
team, if warranted.

For now, I think you are okay.

__._,_.___

---

Posted by: Linda Lawrie <linda@xxxxxxxxxxxxxx>

---

Primary EnergyPlus support is found at:
http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx

The primary EnergyPlus web site is found at:
http://www.energyplus.gov

The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/

Attachments are currently allowed but be mindful that not everyone has a high speed connection.  Limit attachments to small files.

EnergyPlus Documentation is searchable.  Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.

Visit Your Group

• New Members 20

• Privacy • Unsubscribe • Terms of Use

__,_._,___