[TRNSYS-users] TR: longwave radiation mode with 2 airnodes

[Antoine Gautier]

On the same topic


 

I am trying to model a fully glazed wall with fully transparent window
between the 2 airnodes to account for radiative transfers. 

When I save the building file I get the message: “.inf etc. generated
successfully”.

However when I launch the simulation I get the message in attachment which
appears in TRNEXE window.

If you check the .inf file you will notice that adjacency is well defined
for surfaces 9, 11, 12 and 13 despite the previous message error.

Eventually the simulation goes on but the results tend to convince me that
radiative transfers are not correctly calculated between the 2 airnodes.

 

Do you have any idea to solve this problem?

Thanks a lot.

 

Regards

--

Antoine Gautier
Solamen
+33 6 98 78 56 46

antoine.gautier at solamen.fr

 

De : Antoine Gautier [mailto:antoine.gautier at solamen.fr] 
Envoyé : jeudi 16 juin 2011 14:27
À : 'trnsys-users at cae.wisc.edu'
Objet : longwave radiation mode with 2 airnodes

 

Dear all

 

I understand from the user manual §5 that longwave radiation exchange is not
taken into account between 2 airnodes of the same zone under standard
(starnet) or “one node” radiation mode.

 

Could you please confirm my understanding?

 

Then what is the best strategy to transfer internal gains and radiative
heating flux (e.g. from active layer) to the other airnode of the same zone
when not using 3D data?

 

Thanks a lot for your help.

Best regards

--

Antoine Gautier
Solamen
+33 6 98 78 56 46

antoine.gautier at solamen.fr

 

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