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[EnergyPlus_Support] Re: Ventilation control - see file

Thanx a lot for your quick reply!

but...
Let aside for one moment the CO2 control.

Let's say that I want only the temperature control... which is
actually only an attempt of control, because at a certain point the
maximum flow rate is reached and after that room temperature will
fluctuate (hopefully not too much, depending also on the exposition of
thermal mass, which is one object of the study).

Is it possible to define a zone control of the ventilation flow rate
as the one described in the Figure of the attached file? I mean
defining explicitly the dead-band and the control-range?

If not at zone level, is it possible at system level?

Igor



--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Richard Raustad
<RRaustad@...> wrote:
>
> So you want the ventilation to control the CO2, but at times you want 
> the ventilation rate to increase to satisfy the temperature. The only 
> way I can think to do this is to run 2 simulations, the 1st with only 
> mechanical ventilation to satisfy the occupancy/material emissions and 
> the 2nd to satisfy only the zone temperature. Then take the 2 
> ventilation rates and calculate a new "minimum outside air schedule" 
> which is the maximum ventilation rate from the 2 simulations. See 
> documentation for Schedule:File:Comma.
> 
> sartori_igor wrote:
> >
> > Hei all,
> >
> > I have a problem understanding how to implement a specific ventilation
> > control in E+.
> >
> > You will find the description of the problem in the file:
> >
> > "Ventilation control_E+ yahoo group.doc"
> > (under the menu "Files")
> >
> > please take a look to it, it is just 1 figure and 1 formula, nothing
> > scary to understand! (but perhaps to implement?)
> >
> > Thanks very much to anyone who would have suggestions or comments
> > about this.
> >
> > Igor
> >
> >  
> 
> -- 
> Richard A. Raustad
> Senior Research Engineer
> Florida Solar Energy Center
> University of Central Florida
> 1679 Clearlake Road
> Cocoa, FL  32922-5703
> Phone:   (321) 638-1454
> Fax:     (321) 638-1439 or 1010
> Visit our web site at: http://www.fsec.ucf.edu
> 
> UCF - From Promise to Prominence: Celebrating 40 Years
>



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