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Re: [EnergyPlus_Support] Airflow Network through multizones



Rajendra:

You can send the input file directly to me at gu@xxxxxxxxxxxx.

Lixing
----- Original Message ----- 
From: "Rajendra Adhikari" <Rajendra.Adhikari@xxxxxxxxx>
To: <EnergyPlus_Support@xxxxxxxxxxxxxxx>
Sent: Monday, December 11, 2006 1:24 PM
Subject: Re: [EnergyPlus_Support] Airflow Network through multizones


> Dear Lixing Gu,
>
> Thanks for your answer!
>
> I tried to upload the file with no success as file size is very big
> (238 KB) even after zipping.
> Can I send it directly to you or please suggest another option?
>
> Regards,
>
> Rajendra
>
> At 16.40 11/12/2006, you wrote:
>
>>Rajendra:
>>
>>Can you upload the file? I will take a look and let know what happens.
>>
>>Best regards,
>>
>>Lixing Gu
>>----- Original Message -----
>>From: "Rajendra Adhikari"
>><<mailto:Rajendra.Adhikari%40polimi.it>Rajendra.Adhikari@xxxxxxxxx>
>>To:
>><<mailto:EnergyPlus_Support%40yahoogroups.com>EnergyPlus_Support@xxxxxxxxxxxxxxx>
>>Sent: Monday, December 11, 2006 6:06 AM
>>Subject: 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>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]
>> >
>> >
>> >
>> > The primary EnergyPlus web site is found at:
>> > <http://www.energyplus.gov>http://www.energyplus.gov
>> >
>> > The group web site is:
>> >
>> <http://groups.yahoo.com/group/EnergyPlus_Support/>http://groups.yahoo.com/group/EnergyPlus_Support/
>> >
>> > Attachments are not allowed -- please post any files to the appropriate
>> > folder in the Files area of the Support Web Site.
>> >
>> > EnergyPlus Documentation is searchable. Open EPlusMainMenu.idf and 
>> > press
>> > the "search" button.
>> >
>> > Yahoo! Groups Links
>> >
>> >
>> >
>> >
>>
>>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> The primary EnergyPlus web site is found at:
> http://www.energyplus.gov
>
> The group web site is:
> http://groups.yahoo.com/group/EnergyPlus_Support/
>
> Attachments are not allowed -- please post any files to the appropriate 
> folder in the Files area of the Support Web Site.
>
> EnergyPlus Documentation is searchable.  Open EPlusMainMenu.idf and press 
> the "search" button.
>
> Yahoo! Groups Links
>
>
>
> 




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