[esp-r] Re: Role of solar obstructions in simulation

[Achim Geissler]

Hi Satya

adding the tank walls as obstructions will suffice. Note, however, that ESP-r does not automatically generate the necessary shading file after adding obstructions. You will need to set the toggles "shading" and "insolation" to "calculate" and let the shading module generate the files - after these are set up, the simulation takes the shading by obstructions into account.

Obstructions do not reflect solar radiation, though, they are "perfectly black".

Best
Achim



On May 11, 2013, at 4:18 PM, Satya <ringo.satyarr at gmail.com> wrote:

> Hi
> 
> The cookbook states that insolation and shading calculations are performed after addition of solar obstacles. The figure (synopsis of shading) displays values of direct and diffuse shading (among other things).
> 
> Is the insolation and shading module the only way to use solar obstructions or are external solar obstructions accounted for while running a simulation for resultant zone temperatures?
> 
> I am modelling a top floor flat and I believe that the shade from an overhead tank will cause a noticeable difference in resultant zone temperatures. Should I add a 'tank' zone to my model or will adding the tank walls as external shading suffice?
> 
> 
> Regards,
> Satya
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achim.geissler at intergga.ch