[Bldg-sim] Direct/Diffuse Radiation Model

David Bradley bradley at tess-inc.com
Thu Sep 16 07:59:21 PDT 2010


Christoph,
   There is a good comparative treatment of those models in Duffie and 
Beckman's _Solar Engineering of Thermal Processes_ (chapter 2). My 
understanding is that the Reindl model is adapted best for south facing 
tilted surfaces (ie solar collectors) and that the Perez model is 
adapted for more general surfaces (building facades). There are a few 
different Perez models (updates that I am not sure are treated in the 
Duffie and Beckman book)
Best,
  David


On 9/16/2010 07:53, Reinhart, Christoph wrote:
>
> Dear colleagues,
>
> I am searching for a comparative study of models that derive direct 
> and diffuse solar radiation components from total solar radiation. I 
> have been using the Reindl model for many years and I am reasonable 
> happy with it. But,  I'd like to get a feeling what other models are 
> available and how they compare to Reindl. Any pointers would be 
> appreciated.
>
> Thanks a lot,
>
> Christoph
>
> PS: Check out our new video tutorials for DIVA in case you have not 
> seen them http://www.diva-for-rhino.com/usersforum.html
>
> Christoph Reinhart, Dr. Ing.
>
> Associate Professor of Architectural Technology
>
> Graduate School of Design - Harvard University
>
> Gund Hall 331, 48 Quincy Street, Cambridge, MA 02138, USA
>
> t: 617 384 7269, f: 617 495 8916, reinhart at gsd.harvard.edu 
> <mailto:reinhart at gsd.harvard.edu>
>
> Research <http://www.gsd.harvard.edu/research/gsdsquare/>, 
> DIVA-toolbox <http://www.diva-for-rhino.com/>, Design Workflows 
> <http://www.gsd.harvard.edu/research/gsdsquare/tutorials.html>
>
>
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