[EnergyPlus_Support] Re: Light shelf simulation in Energy Plus

["Belal" <bka255@xxxxxxxxxxx>]

thanks all for help!

I just had to remove window frames and it worked! 
now i need to simulate the same light shelf but with different layers, i wanna have a reflective surface and glass layer above. How can i do that in energy plus ?


Thanks again!
Belal

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Jean marais" <jeannieboef@...> wrote:
>
> Is the problem the external lightshelf modeled by a shading surface or an internal lightshelf modeled with the lightshelf object?
> 
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Linda Lawrie <linda@> wrote:
> >
> > Did you look and follow what is in the example file that has a light shelf?
> > 
> > At 06:00 PM 10/12/2012, Belal wrote:
> > >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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> > >energyplus-support@
> > >
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> > >http://www.energyplus.gov
> > >
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> > >
> > >Attachments are currently allowed but be mindful that not everyone 
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> > >under the Documentation link and press the "search" button.
> > >Yahoo! Groups Links
> > >
> > >
> > >
> >
>




------------------------------------

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