[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [EnergyPlus_Support] Shading fins problem with reflectance





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
Yahoo! Groups
PrivacyUnsubscribeTerms of Use

__,_._,___