[EnergyPlus_Support] Re: Light shelf simulation in Energy Plus

["Belal" <bka255@xxxxxxxxxxx>]

Hi,

Thanks for your help.
I already have the overhang modeled, but i have a hard time defining the light shelf in energy plus.

Belal



--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Jean marais" <jeannieboef@...> wrote:
>
> In e+ the walls, floors and roof will only selfshade in as far as the form a closed volume. this means a roof object that projects over the wall will not shade for the projecting portion. this porttion must be modeled using a shading object (shading group in openstudio). Shading objects can be made translucent, reflectant, ect. by means of asigning these properties to them by using yet again other "sub" objects. Read up on these in the io ref. That should get you going. 
> 
> Jean Marais
> 
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Belal" <bka255@> wrote:
> >
> > Hi all,
> > 
> > I'm a new user to Energy Plus, i want to add an exterior light shelf to an existing model.(The model already includes an exterior overhang).
> > 
> > I tried to increase the reflectivity of the overhang top side from 0.5 to 0.9, but it made no difference. Then i created a new material and a new construction for the light shelf material, and added a light shelf in the daylighting category and defined the top side of the overhang as a light shelf, but i get empty spreadsheets for the results.
> > 
> > Is there something wrong i did? Please help me resolve this issue so i can move on with my mater's thesis.
> > 
> > Thank you all,
> > 
> > Belal
> >
>




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