Re: [EnergyPlus_Support] Can I use COMIS model and Ventilation at the same time?

["Michael J. Witte" <mjwitte@xxxxxxxx>]

When the COMIS air flow model is active, the Simple air flow model objects 
(VENTILATION, INFILTRATION, MIXING, and CROSS-MIXING) are inactive.  It is one 
or the other, but never both types together.  To add a constant airflow to a 
COMIS model, use COMIS AIR FLOW:Crack with a value of zero for "Air mass flow 
exponent".  This should result in a constant air flow through the crack, thus 
simulation the exhaust fan.  I believe you would also need to associate an 
appropriate node and pressure with this crack to force the direction of flow.

Mike


On 3 Nov 2005, at 4:49, winterwizardcn wrote:

> Hello Team: 
> 
>     I am trying to simulate natural ventilation effect of a deep room 
> with both side windows. In order to facilitate air flow in the room, 
> there is a exhaust fan inside of the room. Can I use COMIS modul as 
> well as ventilation at the same time? If not, what is the best way to 
> modle that? 
> 
>     Thanks,
> 
> 
> 
> 
> 
> 
> The primary EnergyPlus web site is found at:
> http://www.energyplus.gov
> 
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> 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
> 
> 
> 
> 
> 
> 
> 
> 



========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx




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