[TRNSYS-users] Including Thermal Capacitance in Boiler (Type751)

David BRADLEY d.bradley at tess-inc.com
Mon Apr 7 10:37:04 PDT 2014

   Adding thermal capacitance to the model itself would involve changing 
the source code and asking for some additional parameters so that you 
would be able to solve the first order differential equation that 
describes the behavior.  You'd need a Fortran compiler in order to 
modify, recompile, and relink the code into a modified component. You 
would also need to change the proforma.

   Another method that you could use to accomplish something like the 
same effect without modifying the source code would be to put a tank 
model (Type534 ideally) either directly upstream or directly downstream 
of the boiler. This would at least account for the thermal capacitance 
and standby losses of the liquid volume associated with the boiler.


On 4/7/2014 01:22, Sharma Dev wrote:
> Dear All,
> Could anyone tell me how to include a thermal capacitance into the 
> boiler Type 751, please?
> Dev Sharma
> Institute for Renewable Energy
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Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

d.bradley at tess-inc.com


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