[TRNSYS-users] Type 24 and equations question

David BRADLEY d.bradley at tess-inc.com
Mon Feb 8 13:56:00 PST 2016

   Equations are assessed at every timestep (every iteration, actually) 
and integrators are called after all of the components (and equations) 
have reached convergence at a given time step.
kind regards,

On 02/07/2016 01:53, Marko Mancic wrote:
> Hi,
> I am making some annual system performance analysis, and I am not sure 
> about how Trnsys performes some calculations.
> I am using Type24 to integrate some outputs over a time interval from 
> simulation START to STOP (i.e. one year). I would like to make some 
> simple equations using a few of the Type24 outputs and compare some 
> values .
> I am not certain how Trnsys performes these calculations.
> Does Type24 integrate over a given time interval first, and 
> mathematical operations defined by the equations are carried out with 
> the integrated  value at the end of that time interval (at the end of 
> the simulation/year), or, are these operations carried out as defined 
> by the equations for every timestep and then summed?
> Marko
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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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