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Re: [TRNSYS-users] TRNSYS15 startime



Hello Diego

In TRNSYS15 the results of the first timestep are always zero (e.g. the Sens Energy Demand from Type56 is zero at the end of the first hour of the simulation). This is especially a problem in restarting simulations. How can I prevent this?

You can start your simulation some time before your time of interest.
For example, you can start your simulation on December 1st, and run the simulation until the end of the next year. You will neglect the results for the first December.


Yes, but that won't solve the restart problem. When restarting the first "forcing" is neglected, but it shouldn't be! In the restart the module I use reads in a file saved during a previous run and resumes the calculations. Now, if I run the whole simulation at once, the very first timestep is neglected and the rest of the simulation is continuous. However, if I restart the first timestep of the restart (say, the 43800 step of the complete simulation) is again
neglected and the results are not continuous.

Can that be solved (i.e. can you force TRNSYS to actually calculate the first timestep as well?).

Henk



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