[EnergyPlus_Support] Hanged hydronic heating/cooling panels

["jeannieboef@xxxxxxxxx" <jeannieboef@xxxxxxxxx>]

Hanged hydronic heating/cooling panels

Dear group, I'm hopeless. If you have some hope to share, please share  
it here.

I've come to the opinion that the imbedded pipe model is very  
insufficient at modelling hanged hydronic heating/cooling panels  
ESPECIALLY when they are asked to simulate quickly changing surface  
temperatures of the unit (i.e. a system that is not continuously  
active or zones with large setback dTs). This is due to the required  
thermal diffusivity for numerical stability.

We can't keep trying to use the embedded pipe model to model hanged  
hydronic units. Often these units rely on the radiative transfer very  
heavily and operative temperature investigations are the word of the  
day. I've been looking at this a long time now and I'm tired of trying  
to squeeze the wrong model for the right behaviour.

Is anyone freelance or on the developement team looking at this?

Regards,

Jean

Mit freundlichen Grüßen- Sent from my iPhone (excuse the brevity)

i. A.
Jean Marais
b.i.g. bechtold
Tel.   +49 30 6706662-23


>


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