[TRNSYS-users] diffuse radiation from total radiation

[Jaime Gonzalez Rodriguez]

sure, if you have the global radiation in a horizontal surface (I guess
that's the one you have)...you can say
Ig=Id+Ib
where Id and Ib are diffuse and beam irradiances on a horizontal surface,
since you have the DNI and the elevation solar angle, and you know that Ib =
DNI*sin(elev)
you can say that
Id=Ig-DNI*sin(elev)

you can use a calculator to do so

regards

2010/4/30 Laia Cases - iMat <lcases at imat.cat>

>  Hi Trnsys users,
>
> is there any way to obtain diffuse radioation from global radiaton data to
> be use to simulation studio?
>
> thanks in advance
> Laia
> --
>    *Laia Cases*
> Unitat de Condicionament Tèrmic
> *iMat - Centre Tecnològic de la Construcció
> lcases at imat.cat
> www.imat.cat*
>    Wellington 23  ·   E-08018 Barcelona
> T +34 93 553 97 95
> F +34 93 553 97 96
> Imprimiu aquest document només si és necessari
>
>
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>
>


-- 
Jaime. González Rodríguez
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