[Radiance-general] how to 1) simulate reflected solar radiation and 2) longwave radiation from heated surface

[Greg Ward]

Hi David,

While it may be possible to do something like this through careful scene design & trickery, Radiance is not geared towards long-wave IR calculations and under normal conditions, reflectors cannot also serve as emitting surfaces.  It is also tricky to separate components, such as distinguishing what came from building surfaces from the sky component.  Again, there are ways to accomplish it, but it's an advanced task and there would definitely be some debugging involved.

Cheers,
-Greg

> From: David Davidson <this.is.david.davidson at gmail.com>
> Subject: [Radiance-general] how to 1) simulate reflected solar radiation and 2) longwave radiation from heated surface
> Date: January 17, 2015 12:57:50 AM PST
> 
> Dear list, 
> 
> May I ask if Radiance can simulate the following:
> 
> 1. the amount of solar radiation (both direct and diffuse) receivable for a given point that is reflected from a given nearby surface, e.g the amount of solar radiation at the centre of a 10x10 courtyard and 2m above ground that is reflected from the building surfaces facing the courtyard. 
> 
> 2. the amount of longwave radiation received on a given point contributed as a result of a nearby surface that are heated by the sun, 
> 
> Thanks!
> 
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