[TRNSYS-users] Mask

David Bradley bradley at tess-inc.com
Thu Aug 30 09:35:44 PDT 2007


Gizmoog,
  As far as the beam radiation is concerned, you can use the 
combination of Type67 and Type34 to define the inverse of your mask:

>inside                                 outside
>             _________________
>             |
>             |
>             |
>             |                           |
>             |                           |
>             |                           |

where Type34 defines the overhang and Type67 defines the inverse of 
your real mask. Type67 has outputs for whether the beam radiation is 
visible or not. The output BeamFraction is 0 if beam radiation is 
blocked and 1 if the beam radiation is not blocked. In your case, you 
will multiply the unshaded beam radiation by (1-BeamFraction).
You might be able to handle the diffuse radiation in a similar manner.
Cheers,
  David


At 08:53 8/28/2007, gizmoog wrote:
>Dear users,
>
>I try to model a mask but I don't know how to do: my mask is vertical,
>at the end of an overhang :
>
>
>inside                                 outside
>             _________________
>             |                           |
>             |                           |
>             |                           |
>             |
>             |
>             |
>
>Does anybody know how to model that ?
>
>regards,
>
>gizmoog
>
>_______________________________________________
>TRNSYS-users mailing list
>TRNSYS-users at engr.wisc.edu
>https://www.cae.wisc.edu/mailman/listinfo/trnsys-users

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