[TRNSYS-users] Tsky calculation with 2 different Types: Big difference in results!!!

[Talal SALEM]

Dear fellows,

 

I have a question concerning the calculation of the effective Sky
Temperature.

When I use on the one hand the Type 15-6, and on the other hand a
combination of Type 109 with the Type 69b and the Type33e, the results of
the effective sky temperature differs although in the mathematical reference
we can see that the same equations are used for both cases (Tsky in
Type15-6, and Tsky in Type 33) in the calculation. [Please check attached
Trnsys file]

Can you please check this big difference (up to 10°c)?

Thank you in advance

 

Talal S.

 

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