Solar radiation Parameters meaning

[silmag]

Hello

Can some please clarify me the meaning/formulation of the parameters named:

"Solar radiation direct to inner air" (associated to each zone) and "Solar radiation on inner surface " (associated to each component)?

Are both %? Is the value 0.1 acceptable by default for the first as suggested by WUFI? (second doesn't have any value by default).

I can't find these formulations in the Manual.

Thank you very much.

Best regards,
Sílvia Magalhães

[mpazold]

Hi,

most (at least all) percentage inputs WUFI Plus are in decimals. So for 10% the input is 0.1

"Solar radiation direct to inner air" = 0.1 means that 10% of the incomming solar gains through transparent components direct heat up the inner air

The remaining 90% (0.9) are distributed to the inner surfaces of adjoned components to the zone. This distribution (of the remaining 90%) is done with the parameter "Solar radiation on inner surface" which is default calculated proportional to the surface area of the components. "Solar radiation on inner surface" is changeable to be user defined for a zone (in the other paramters Treenote). In sum the Solar radiation on inner surface of all components adjoined to the zone have to be 1.

best regards,
Matthias

[silmag]

Thank you very much for your answer.
So one can conclude leaving 0.1 for the 1st and no value for the second is a good option by default?