[TRNSYS-users] TRNSYS3D Variable Shading?

[David BRADLEY]

Graham,
I do not think it is possible to vary the transmittance of a Trnsys3D 
object. You might be best off using type67 to assess the reduction in 
incident solar radiation on your building facades. While type67 itself 
assumes that shaders are totally opaque when calculating shaded 
radiation, it also outputs the raw shading fractions for beam and 
diffuse radiation. Multiplying these by a non-zero transmittance would 
get you your partial shading.
Kind regards,
David


On 10/11/2011 13:57, Graham Linn wrote:
> Good Day TRNSYS community,
>
> I would like to simulate a shading garden wall in TRNSYS. (Think of a
> curtain wall but the outer layer is just a trellis with vines growing
> on it.) Can I draw a shading wall in TRNSYS3D and vary its
> transmittance based on time of the year? Or do I have to use some kind
> of other shading factor input?
>
> I would like the garden wall to cover areas besides just windows.
> However, I cannot figure out how to vary the transmittance for
> TRNSYS3D shading surfaces.
>
> Thank you!
> Graham Linn
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David BRADLEY
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