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
Marko,
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,
David
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David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI 53703 USA
P:+1.608.274.2577
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d.bradley at tess-inc.com
http://www.tess-inc.com
http://www.trnsys.com
?David,
Thank you for the answer. Does this mean that computing is the same for Type 55 as well?
Is it possible to read just the last time step (which converged) output variable value of an integrator? Maybe with Type93 or similar?
Marko
Hello TRNSys users!
Is there anyone to show me how i can apply a type 557 or geothermal components in general?
Vagias Vagias
post graduate student
School of Environmental Engineering
Technical University of CretePolytechnioupolis 73100 Chania, Crete, Greece