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Re: [EnergyPlus_Support] Airflow Network through multizones

Thanks a lot!

Problem has been resolved by moving to V1.4.
Now I am able to run the file but I am getting following problem:

** Severe  ** Too many iterations (SOLVZP) in AirflowNetwork simulation
    ** Warning ** AirflowNetwork: SOLVER, Changing values for 
initialization flag, Relative airflow convergence, Absolute airflow 
convergence, Convergence acceleration limit or Maximum Iteration 
Number may solve the problem.
    **   ~~~   **  Occurrence info=ROME - ITA IWEC DATA WMO#=162420, 
06/01 00:00 - 00:30
    **   ~~~   ** ..Iterations=500000, Max allowed=500000
    **  Fatal  ** AirflowNetwork: SOLVER, The previous error causes 
termination.

I am simulating a residential building with 22 thermal zones and 122 
openings (windows etc.). I tried to increase the Maximum iteration 
number from 500 to 50000 but problem still persists. Could you please help me.

Thanks, Rajendra


At 22.42 05/12/2006, you wrote:

>If you are getting the error:
>** Severe ** GetAirflowNetworkInput:
>AirflowNetwork:Multizone:Surface object, Surface=<surfacename>
>** ~~~ ** ..Zone for outside surface must be defined in a
>AirflowNetwork:MultiZone:Zone object. Could not find Zone=<zonename>
>
>That may have been fixed in V1.4 with this:
>Folder: EnergyPlus
>CR Number: 7052
>Type: Defect
>Addressed In: 06.07.27 V1.4.0.011
>Synopsis for Users: Input files using shading surfaces (detached or
>attached) and AirflowNetwork options would have fatal errors.
>
>If you have shading surfaces, you can remove them if you are still
>running V1.3 (but then you won't have their effect) or move to V1.4
>
>Linda
>
>EnergyPlus WebSite: <http://www.energyplus.gov>http://www.energyplus.gov
>Owner: EnergyPlus_Support list
>Member: EnergyPlus Development Team
>
>[Non-text portions of this message have been removed]
>
>


[Non-text portions of this message have been removed]



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