[BLDG-SIM] Exterior shades / daylight on floor surface - ECOTECT

[Ramana Koti]

Leonard,

I haven't done extensive daylighting simulation in Ecotect but I know that
Ecotect uses split flux method to compute internally reflected component
that tends to overpredict daylight levels at sensor points away from
openings.

Using Radiance or Radiance based software like DAYSIM or IES <VE> could be a
better option.

Ramana Koti, LEED AP
Sustainable Building Analyst

ELEMENTS division of BNIM architects
106 W. 14th Street Suite 200
Kansas City, Missouri 64105

p 816.783.1635 f 816.783.1501
www.bnim.com| elements.bnim.com

On 8/29/07, Leonard Sciarra <leonard_sciarra at gensler.com> wrote:
>
>  I may be expanding the forum somewhat, but, does anyone have experience
> modeling exterior shades / fins to optimize day lighting using Ecotect?
>
> I am modeling some exterior shades and it seems that the impact on
> internal light levels is not being reflected to the degree I would expect.
> Now I know the algorithm used uses a diffuse sky rather than direct
> radiation, but still the effect of the shades does not seem to reduce the
> internal light levels.  I ran a check using insolation and direct radiation
> so I know the model "sees" the shades, but the daylight is acting funny.
>
> Thanks.
>
>
> Leonard Sciarra, AIA, LEED ap
>
> 312.577.6580 (Dir)
>
> G E N S L E R | Architecture & Design Worldwide
>
> 30 West Monroe Street
>
> Chicago IL, 60603
>
> 312.456.0123
>
> leonard_sciarra at gensler.com
>
>
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