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Re: [EnergyPlus_Support] Anomalous results with ** Warning ** GetAirPathData: & ** Warning ** WetBulb




If you don't have another machine to run it on, send me the idf privately.

Mit freundlichen GrüÃ?en- Sent from my iPhone (excuse the brevity)
i. A.
Jean Marais
b.i.g. bechtold
Tel.   +49 30 6706662-23
On 04.06.2014, at 18:53, "Marco Aldegheri <mailto:m.aldegheri@xxxxxxxxx>m.aldegheri@xxxxxxxxx [EnergyPlus_Support]" <<mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx>EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:

>  
> Uhmm it's very strage, the txt are just the same.
>  
> I don't understand why it's happening so. Jean, please,  could I ask you a courtesy?
> Do you see any difference between the zone mean air temperature of the DB file and the idf processed by e+?
> On my pc e+ shows me a non-sense.
> Could you make a try? The file is very fast to run.
> 
> Marco
> 
> 
> On Tuesday, June 3, 2014 1:45 PM, "<mailto:'jeannieboef@xxxxxxxxx>'jeannieboef@xxxxxxxxx' <mailto:jeannieboef@xxxxxxxxx>jeannieboef@xxxxxxxxx [EnergyPlus_Support]" <<mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx>EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:
> 
> 
>  
Hi Marco,
Do a text compare of the in.idf file located in the DesignBuilder energyplus folder, and the exported idf. They should be the same. If not, I would notify DesignBuilder via a helpdesk ticket. Let me know what you find.
Regards,
> 
> Mit freundlichen GrüÃ?en- Sent from my iPhone (excuse the brevity)
> i. A.
Jean Marais
b.i.g. bechtold
Tel.   +49 30 6706662-23
> On 02.06.2014, at 16:55, "<mailto:m.aldegheri@xxxxxxxxx><mailto:m.aldegheri@xxxxxxxxx>m.aldegheri@xxxxxxxxx [EnergyPlus_Support]" <<mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx><mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx>EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:
> 
>>  
Hi all,
>> 
>> I'm testing an air heating system on a minimodel.
>> I created it with DesignBuilder and in DB I obtained an apparently correct internal temperature vs time.
>> Than I explorted the idf and I processed the idf (no modified, of course) with E+. The zone mean air temperature now is completely different and in my opinion completely out of mind.
>> 
>> The heating system just takes the air from the outside and heat the flux  untill 18°c if the air temperature is lower than this value. 
>> 
>> In particular I have 2 suspicious warnings, they are:
>> 
>>    ************* Beginning System Sizing Calculations
>>    ** Warning ** GetAirPathData: AirLoopHVAC="AIR LOOP" has no Controllers.
>> 
>> and
>> 
>>    ************* Beginning Simulation
>>    ** Warning ** WetBulb not converged after 101 iterations(PsyTwbFnTdbWPb)
>>    **   ~~~   **  Routine=Unknown, Environment=UNTITLED, at Simulation time=03/28 15:00 - 15:06
>>    **   ~~~   **  Input Temperature = 18.50
>>    **   ~~~   **  Input Humidity Ratio= 0.141212
>>    **   ~~~   **  Input Pressure = 99122.00
>>    **   ~~~   **  Resultant Temperature= 25.44
>> 
>> Thanks,
>> Marco
>> <PROVA VENT.rar>
> 
> 



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