[EnergyPlus_Support] Re: ZoneVentilation Volume Standard Density vary

["rgen1202" <robin.genoud@xxxxxxxxx>]

Lixing,

Thanks for your answer. I uploaded the file in Files>Problem_Submittals 
http://tech.groups.yahoo.com/group/EnergyPlus_Support/files/_Problem_Submittals/. 
Its called ventilation_mech.idf . Its a single zone building with only ZoneVentilationDesign Flow Rate. I used the FRA_LYON_IWEC.epw for the weather (I uploaded it too). 

Thanks in advance.

Regards.

Robin

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Lixing Gu <gu@...> wrote:
>
> Robin:
> 
> If you report Zone Ventilation Volume Standard Density, it should give you a
> constant value. Please upload the input file and tell us the weather file
> name if this weather file is downloaded from the energyplus web site. We
> will take a look.
> 
> Lixing
> 
> -----Original Message-----
> From: EnergyPlus_Support@xxxxxxxxxxxxxxx
> [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Lixing Gu
> Sent: Wednesday, May 04, 2011 1:29 PM
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: RE: [EnergyPlus_Support] ZoneVentilation Volume Standard Density
> vary
> 
> Robin:
> 
> I think you may use one of two output variables to report volume flow rates:
> 
> HVAC,Sum,Zone Ventilation Volume Flow Rate Current Density [m3/s]
> HVAC,Sum,Zone Ventilation Volume Flow Rate Standard Density [m3/s]
> 
> It was found as a bug to report volume flow rates and was fixed for the next
> release. It is a report error and has no impact of simulation results.
> 
> Lixing  
> 
> -----Original Message-----
> From: EnergyPlus_Support@xxxxxxxxxxxxxxx
> [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of rgen1202
> Sent: Wednesday, May 04, 2011 11:56 AM
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: [EnergyPlus_Support] ZoneVentilation Volume Standard Density vary
> 
> Hello,
> 
> I have a question about the ZoneVentilation DesignFlowRate.When I set the
> Design Flow Rate to a constant value (assuming 0.086162 m3/s, for a single
> zone), I don't understand why the output variable Zone Ventilation Volume
> Standard Density (hourly) is varying. Can someone explain it? I have checked
> the settings and I have all minimum and maximum temperature setted to
> default value (this mean no shutoff of ventilation) , the maximum wind speed
> is 40 m/s (no shutoff) and only the constant term coeeficient is set to 1,
> the other are to 0. Of course, I have tested this setting for a single zone,
> without any infiltration or other air system.
> 
> Thanks in advance.
> 
> Robin GENOUD
> 
> 
> 
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> Primary EnergyPlus support is found at:
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