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[EnergyPlus_Support] Re: Series Counterflow Chiller Arrangement

Thanks for the advice.  I have tried changing the control types to SeriesActive, but it didn't seem to help.  Any more ideas?



--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Richard Raustad <RRaustad@...> wrote:
>
> Try setting the branch control to SeriesActive for each chiller and see 
> if that helps.
> 
> Branch,
> Central Chiller Branch, !- Name
> 0, !- Maximum Flow Rate {m3/s}
> , !- Pressure Drop Curve Name
> Chiller:Electric, !- Component 1 Object Type
> Central Chiller, !- Component 1 Name
> Central Chiller Inlet Node, !- Component 1 Inlet Node Name
> Central Chiller Outlet Node, !- Component 1 Outlet Node Name
> SeriesActive; !- Component 1 Branch Control Type
> 
> 
> elmaria024 wrote:
> >
> > I'm trying to model a series counterflow (water-cooled) chiller 
> > arrangement where two chillers are in series. I can get the SVG file 
> > to accurately represent the arrangement, but I can't seem to control 
> > the chillers properly. When only one chiller is on (the other not on 
> > the plant equipment list), the chilled water loop maintains set point, 
> > but when I add the second chiller to the equipment list neither 
> > chiller turns on during the year. I've tried uncontrolled, cooling 
> > load, and component set point operation controls to no avail.
> >
> > Can series counterflow chillers or just series chillers be modeled? I 
> > don't see any example files. If they can, what am I missing?
> >
> > Thanks in advance!
> >
> > 
> 
> -- 
> 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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