[TRNSYS-users] help

[David BRADLEY]

Dr Rami,
  I am not aware of any examples of coupling Type36 and Type56. However, 
looking at the mathematical reference manual entry for Type36, I think 
the best approximation that you are going to be able to do is as follows:

  Type36 makes the simplifying assumption that the inside surface 
temperature of the wall is the same as the innermost node temperature. 
It allows you to calculate the  convection between that node and the 
room temperature by asking you to specify the inside heat transfer 
coefficient as an input. In TRNBuild, add a low resistance "massless" 
BOUNDARY wall on the south side of your building and select 
"userdefined: input" as the back side surface temperature. Set the 
outside convection coefficient of that wall to be 0.0001 (indicating 
direct contact). Also output the "inside surface temperature" for that 
wall from Type56. In Type36, enter the resistance of the wall for the 
"inside convection coefficient" Type56's inside wall surface temperature 
becomes the room temperature that you pass to Type36 and Type36 
innermost node temperature becomes the "outside surface temperature" 
that you pass back to Type56.

   I am not promising that this will work but I think it is worth a try.
Best,
  David




On 11/13/2010 03:38, Dr.Rami wrote:
>
> Dear sir
>
> I work with TRNSYS 16 and try to connect Trombe wall (type 36) to 
> building (type 56). so, I connected the first output of Trombe wall to 
> defined gain in building and the room air temperature to Trombe wall 
> input, but how the program understand that Trombe wall is connected to 
> south wall for example. I make the south wall massless and not 
> external but boundary, I am not sure if that is true so could you 
> please help me to get the correct connection. Please send an example 
> (deck file).
>
> With my best regards
>
>
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> TRNSYS-users at cae.wisc.edu
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-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

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