[esp-r] Re: solar obstructions

[Geissler Achim]

Hi Jordan,
as far as I remember, obstructions are nonreflective ("totally black") and non-translucent ("totally opaque"). The material is used for interaction with Radiance, only, I think.
Actually, having surface properties of "glass louvers" or "stainless steel louvers" taken into account as obstructions would be a nice feature ...
Regards,
Achim


 
Mit freundlichen Grüssen / Best regards
 
Achim Geissler

> -----Original Message-----
> From: esp-r-bounces at lists.strath.ac.uk [mailto:esp-r-
> bounces at lists.strath.ac.uk] On Behalf Of jordan.richie at utoronto.ca
> Sent: Tuesday, May 22, 2007 8:14 PM
> To: esp-r at lists.strath.ac.uk
> Subject: [esp-r] Re: solar obstructions
> 
> Thanks Oliver.
> 
> My question was probably too ambiguous, though.  When you define an
> obstruction you can also attribute a composition/construction to it
> (e.g. extern_wall).  My question is: How does obstruction
> composition/construction affect shading/insolation analysis?  Are only
> optical properties of the construction considered?
> 
> 
> Quoting Oliver Bucks <oliver.bucks at club-internet.fr>:
> 
> > Dear Jordan,
> >
> > In general, the solar obstruction should block out the sun's energy.
> However,
> > care should be taken when dimensionning the obstructions - if the height
> or
> > length of the obstruction is smaller than the resolution of the grid
> ESP-R
> > projects onto the shaded surface(s), its shading will not be taken into
> > account..... The grid size can be manually set in the shading and
> insolation
> > window.
> >
> > Hope this helps....
> >
> > Olli Bucks
> >
> > ----- Original Message -----
> > From: <jordan.richie at utoronto.ca>
> > To: <esp-r at lists.strath.ac.uk>
> > Sent: Thursday, May 17, 2007 9:55 PM
> > Subject: [esp-r] solar obstructions
> >
> >
> >> How is the construction of a solar obstruction used in shading
> >> analysis?  I want to represent the shading provided by another building.
> >>
> >> Thanks.
> >>
> >> Jordan Richie
> >>
> >>
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> 
> 
> Jordan Richie
> Adaptation & Impacts Research Division
> Environment Canada at the University of Toronto
> Centre for Environment
> 33 Willcocks Street
> Toronto, Ontario M5S 3E8
> Cell: (416) 436-1505
> jordan.richie at utoronto.ca
> 
> 
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