[TRNSYS-users] convergence problem

[Adrien JEZEQUEL - ITF]

Dear Karol,

Maybe you can increase the number of time step in CONTAM, before 
creating your TRNSYS input file. (Simulation - Set Simulation Parameter 
- AirFlow Numerics Tab)
You may also use a differential controler (Type2) instead of using an 
equation like GT(T_1,24,) ton control your input.

best regards
------------------------------------------------------------------------
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	Adrien JEZEQUEL
Simulations Thermiques Dynamiques
*ITF*
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Le 23/12/2011 08:45, Karol Bandurski a écrit :
>
> Hi
>
> I have modeled natural ventilated house using Contam and type 56.
>
> One of inputs of type 97 (CONATM) is  'Adjustable opening: 
> ZoneA/<1>->ambt/ <path16>'.
>
> I control this value depending on the ZoneA temperature:
>
> 'Adjustable opening: ZoneA/<1>->ambt/ <path16>'=1 for T_ZoneA>24 C
>
> using Equation (gt(T_A,24)).
>
> But I get error that maximum number of warnings: /'The inputs to the 
> listed units have not converged at this timestep. The values at the 
> last iteration will be used and the simulation will proceed'/ allowed 
> per simulation has been exceeded.
>
> I have tried to use type93 between type 97 and Equation with 1 or 100 
> timestep stored, but error still appear.
>
> Parameters of simulation (I wouldn't like to change it, especially 
> timestep):
>
> Timestep=0.1 h
>
> Tolerance convergence=0.001
>
> Before 'WARNNING': 30
>
> Before 'ERROR': 30
>
> Could you help me?
>
> Christmas Regards!
>
> ------------------------------------------------
>
> Karol Bandurski MSc.
>
> Institute of Environmental Engineering <http://www.ee.put.poznan.pl/>
>
> Poznan University of Technology
>
> www.ee.put.poznan.pl <http://www.ee.put.poznan.pl/>
>
> www.put.poznan.pl <http://www.put.poznan.pl/>
>
>
>
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at cae.wisc.edu
> https://mailman.cae.wisc.edu/listinfo/trnsys-users
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