[TRNSYS-users] The smooth results suddenly are changed to "NaN"

[David BRADLEY]

Reza,
   NaN stands for "not a number" and it is usually the result of a model dividing by zero internally. In order to find where the NaN occurs, it is necessary to run your simulation using the line by line debugger in a fortran compiler. If you don't have a compiler and have checked your *.m code to make certain that it cannot produce a division by zero then it might be helpful to know how this NaN is being reported (is it in the lst/log files? is it reported as a FORTRAN error on screen?) in order to get a better idea of where you might look for the problem.
Kind regards,
  David


On 12/20/2013 22:06, Safizadeh Mohammadreza wrote:
> Dear all TRNYSY users,
>
> Indeed, I am using two Types155 in series, in which the results from first one are used by next one.
>
> *** Problem:
> Once I run the simulation for 9000 experimental input data, the simulation runs smoothly for 1370th data but suddenly it produces simulation results as NaN.
>
> I would appreciate if you could help me what the source of problem is. :)
>
> Best Regards,
> Reza Safi
>
> Solar Energy Research Institute of Singapore (SERIS)
> National University of Singapore
> 7 Engineering Drive 1, Blk E3A #06-01, Singapore 117574
> www.seris.sg
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at cae.wisc.edu
> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>

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