[TRNSYS-users] Combining shading masks and overhangs (type 68 and type 34)

["Amelie Mariller" <amelie.mariller@bet-etamine.com>]

 

 

Hello,

1. we try to use for the same orientation shading mask with type 68 and overhang or wingwall (type 34).

Which one should come first after radiation processing? :

-in type 34, the horizontal diffuse and total radiations are inputs, so is the beam radiation on surface.  

-upstream component mode equals 1 signifies the view factor is already taken into account for the diffuse radiation with type 68  .

how can it  take into account the view factor for shaded diffuse radiation on horizontal since this is not an  output of type 68 ,.... but still an input of type 34. I assume it can't neither be through the shaded beam on surface...

 

Furthermore, we encountered inconsistent results using type 34 after type 68 : more sun on the window than with type 34 only. Using type 68 after type 34 seems to give more consistent results but we are still not sure they are correct since it is not the right order. Could you give an explanation of this problem?  

 

2. Else, another problem :

when the .bui file and the .tpf file are located in the same folder, we sometimes get an error message. Changing the location of the bui file in another folder solves the problem... has anybody ever encountered this bug?

 

Thanks in advance for any explanation (especially for the first point!)