Re: [TRNSYS-users] angle of incidence

[David Bradley <bradley@tess-inc.com>]

The Type56 window model includes thermal properties that depend on the angle of incidence of the solar radiation falling on the window (visible transmittance, for example, changes with incidence angle as the window's reflectance increases as the angle of incidence increases).
Regards,
 David


On 9/22/2010 10:05, Mariëlle Nuchelmans wrote:

Oke, I know what the angle of incidence is, but I wonder what its influence is? I use it as an input for type 56. (incidence angle is an indication howmuch sun falls on surface, but type 16 calculates the radiation, so why do I need it)

 

I ask this because I’ve data with radiation on different surfaces, and I want to use this, but I don’t have the angle of incidence.

 

Kind regards,

 

Mariëlle

 

Van: Mariëlle Nuchelmans [mailto:M.Nuchelmans@chri.nl]
Verzonden: woensdag 22 september 2010 14:40
Aan: trnsys-users@cae.wisc.edu
Onderwerp: [TRNSYS-users] angle of incidence

 

Hello,

 

Type 16 calculates, besides Total en beam radiation, also the angle of incidence. Does anyone who what the definition is of this angle? I can’t find it in the manual.

 

Thanks,

 

Mariëlle

 

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