WUFI

Hello,

I'm now working with WUFI Passive v2.5.4, trying to finish the dynamic simulation.

I need to simulate the shading from some overhangs (the red ones in the picture); some of them are "brise soleil" panel, that will probably be covered by hedera or any other climbing plant (in the picture above I've simplified their geometry to make the export easier).
My question: is this version of WUFI able to calculate them?if so how can I proceed?

In any case, I've also done the solar simulation with Ecotect and calculated the shading reduction factors for winter/summer (similar to "r_other" of PHPP). Is there a way to put these factos in the dynamic simulation?

Thank you for your answers

Simone Ghinelli

Hello Simone Ghinelli,

this version doesn't calculate the shading from other components. Only the shading from window overhangs (in the Solar protection-> Window overhang Tab) is calculated depending on the direct sun irradiance angle. They are drawn in green color in the 3D visualization. But this is only done if you check "Calculate shading from all elements" in the Surface -> Thermal Tab for a transparent component. Of cause, sorry, this is confusing. We are still working on that issue and implementing the shading model.

However, you can set a constant shading reduction factor in the Suface-> Thermal Tab. It is applied to grouped windows. If want to specify each window you have to ungroup them. Furhermore you might have to do two simulations, one to investigate the winter period and one for the summer period with different reduction factors.

Another detailed way, not that easy so far, is to apply external calculated solar radiation (in W/m²), already reduced by shading elements, on each window. If you want to know more about that, i can prepare a short tutorial.

thank you for this question,

Matthias