[esp-r] Re: Time:var graph for solar at ext face surf

[Achim Geissler]

Hi Lars

I am not sure if you will get direct and diffuse separately via res (I think not). Anyway, in < tabular output, performance metrics, time step reports, surface flux > you find <sw rad incid (other face)> which, as far as I recall, is total short wave (aka solar) radiation on the surface of choice.

You can also try xml output, however I am not sure that this gives out direct and diffuse components separately, either (in the official version). Of course, you could also monitor a north faced (for locations in the northern hemisphere, that is) surface to get an idea of the diffuse component.

Sorry I don't have any more ideas. Maybe someone else will chip in.

Best
Achim


On Mar 1, 2013, at 5:39 PM, l.lars <l.lars at gmx.de> wrote:

> Hello,
> I am looking for a solution to show a time-variable graph for the 
> diffuse and direct radiation on an external wall.
> I got a very simple model. It is just a box without any windows, with 
> just an inclined roof and some shading bodies.
> Is there a way to get an time-(direct solar radiation on the outside of 
> the roof) graph? I just can find in the var.vsvar menu "solar at ext 
> face" but nothing in the time-var menue.
> At the end, this should be the import for a pv model. So I need to know 
> how much radiation is available on that roof.
> 
> Thanks for your help
> Lars
> 
> 
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achim.geissler at intergga.ch