RE: [EnergyPlus_Support] ZoneVentilation Volume Standard Density vary

[Lixing Gu <gu@xxxxxxxxxxxx>]

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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