glazing spacer modeling per NFRC

[cubric]

Hello,

i am working on thermal simulation and need to use glazing spacer, to be exact Swisspacer Advance glazing spacer.
Now i didn't have much luck to find all the information and details regarding the spacer.

The best information on spacer thermal specification/materials is this one, on the link
https://www.bundesverband-flachglas.de/index.php?eID=tx_nawsecuredl&u=0&g=0&t=1573836176&hash=e15eb8824b8c495027375735429e2040f8bb0ac6&file=fileadmin/Public/download/BF-Datenblaetter/24-W-EN-Advance_Swisspacer_3-10-19.pdf

My question is can the "two box model" be used instead of real 2d model of spacer inside Therm and that is NFRC aproved ( see link for explaenation   http://prntscr.com/pwze3s ).

Thanks in advance for answer,

Sime Cubric

[Robin Mitchell]

I am pretty sure that you need to model the actual spacer geometry and materials for an NFRC certification. 

But you should talk to someone at NFRC -- I suggest Scott Hanlon: sha...@nfrc.org

Robin 

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Robin Mitchell

Building Technology and Urban Systems Division
Energy Technologies Area
Lawrence Berkeley National Laboratory

[cubric]

Thank you Robin for advice and guidance.

[yalin uluaydin]

Cubric,

NFRC 101 is a materials database that manufacturers provide their product conductivity. You'll find the material conductivity of the spacer in there.

Most spacer of the same type have similar effective conductivity. NFRC 100 allows you to simulate the spacer as a 2-box model using conductivity in NFRC 100. You can download these documents from the NFRC website.

Yalin