Re: [EnergyPlus_Support] vents

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

If these inlet vents are expected to provide a constant flow rate, the simple 
Ventilation command may be appropriate.  Using the polynomial coefficients you 
can define the flow relationship versus wind speed and temperature difference, 
or you can set the coefficients to provide a constant flow with no dependence 
on outdoor conditions.

Mike


On 26 Nov 2003, at 0:01, Joe Huang wrote:

> Mohit,
> 
> If the self-regulation of the inlet vents is due totally to natural forces I
> would model them as COMIS Openings.  There is a problem that at present all
> COMIS Surfaces must be associated with a Heat Transfer Surface or Subsurface, so
> you would have to define a fictitious window of the appropriate dimensions and
> set its heat transfer and solar properties to 0. Also, make sure its location,
> especially its height (Z) relative to the zone that it serves, are input
> correctly.
> 
> Joe
> 
> ----- Original Message -----
> From: "Mohit Mehta" <mohitmehta1@xxxxxxxxx>
> To: <EnergyPlus_Support@xxxxxxxxxxxxxxx>
> Sent: Tuesday, November 25, 2003 10:42 PM
> Subject: [EnergyPlus_Support] vents
> 
> 
> > hi:
> > i am attempting to model "self regulating inlet vents" as part of the
> natural ventilation strategy in a 5 story office building. even though these
> inlet vents will be on different floors, they are designed to provide a
> relatively constant flow rate over a range of air pressure differences due to
> stack effect and external wind conditions. > does anyone have any suggestions as
> to how i could go about this in energyplus? > is there a specific air-flow
> component that i could use? or will i have to trick an opening/crack to achieve
> this? > thanks. > ~mohit > > > > > --------------------------------- > Do you
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========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx


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