Re: [TRNSYS-users] Heating load

[David Bradley <bradley@tess-inc.com>]

Salim,
 I think this will just result in convergence problems. When you define an automatic heating type in TRNBuild, you are predefining the temperature of the zone and you are asking Type56 to tell you how much heat was necessary in order to get there. If you give Type56 a heating rate from some external system, you are asking Type56 to calculate the resulting zone temperature. You can do one or the other but you can't really do both at the same time. I would recommend that you use Type108 as a thermostat watching your zone temperature and turning on and off your external heating system to maintain the set point.
Best,
 David

On 7/9/2010 09:55, salim mokraoui wrote:

Dear Trnsys users,

 

If I want to use an external heating system (external from type 56), can I define, in the same time, the heating from Trnbuild, i.e. specify a set temperature of the zone and calculate the heating rate as an input to type 56 (output from the external system).

 

Best regards

 

Salim MOKRAOUI

Faculté des sciences de Nancy - LERMAB

BP 239

54506 Vandoeuvre.

Tél 03 83 68 48 47 - mél salim.mokraoui@lermab.uhp-nancy.fr

 

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