Radiant barrier - surface geometry

AI Thread Summary
The discussion centers on the potential for improving the efficiency of radiant barriers through innovative surface geometries, such as wavy, triangular, or pyramidal shapes. The inquiry is prompted by the design of reflective surfaces in Soviet electric heaters, which consistently featured a triangular shape with a 112-degree angle. The poster questions whether this design offers any advantages in terms of reflection efficiency or if it was merely a stylistic choice. There's a distinction made between radiant heaters, which focus radiation, and radiant barriers, where flat surfaces are typically deemed most effective. The conversation seeks to explore if there is any research supporting the idea that altered geometries could enhance radiant barrier performance or if the preference for flat surfaces is based solely on common sense.
karlis
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Hello, first post, don't know if I got the section right tough..

Basically I was wondering, if the efficiency of radiant barrier (for home insulation or industrial, high T) could be improved with different surface geometry eg wavy, triangular, pyramids?

Why I'm wondering - the reflective surface of electric heaters produced in USSR had a traingular surface shape and the bends was 112 degrees. Always.

Is there something valuable to learn from this or was it just a design feature? Does the 112 angle provide better overall reflection or..?

Sorry, EN isn't my 1st languague..
 
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Radiant heaters try to focus the radiation, which is completely different from what a radiant barrier is doing. Flat is best for that.
 
Are there any research to support that or is it just common sense or something else?
 

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