[EnergyPlus_Support] Re: About the evaporator outlet temp of electric chiller

["applezealot" <applezealot@xxxxxxxxxxxx>]

Dear Mike

    Could please tell me some methods to controll the leaving 
temperature of chiller and let it float in a range.
    Thank you in advance.

                                                     charlie

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Michael J. Witte" 
<mjwitte@g...> wrote:
> With dual setpoints, EnergyPlus would use the upper setpoint to 
control 
> chillers, and the lower setpoint to control boilers.  EnergyPlus 
will not 
> control chillers to float within a range as described below.
> 
> Mike
> 
> 
> On 12 May 2005, at 6:39, energypluser wrote:
> 
> > Dear all:
> > 
> >    I set the chiller evaporator outlet node for the Loop 
Temperature 
> > Setpoint Node in Plant-Condenser Loops. And the setpoint manager 
for 
> > this node is a dual setpoint manager with the low and high 
scheduled 
> > temperature at 7C and 13C for all days respectively.  
> >   The purpose of using this setpoint manager is to let the 
chilled 
> > water outlet temperature varies between the deadband. But the 
> > simulation results show that the chiller supply temperature is 
10C, 
> > which is the average value of the upper and lower temperature 
limit.
> >   Is E+ able to control the chiller water supply temperature in 
this 
> > way? 
> >   Thank you in advance!
> > 
> >                                         charlie
> > 
> > 
> > 
> > 
> > 
> > The primary EnergyPlus web site is found at:
> > http://www.energyplus.gov
> > 
> > The group web site is:
> > 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.
> > 
> > Yahoo! Groups Links
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> 
> 
> 
> ========================================================
> Michael J. Witte, GARD Analytics, Inc.
> EnergyPlus Testing and Support      
> EnergyPlus-Support@g...




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