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

["applezealot" <applezealot@xxxxxxxxxxxx>]

Dear Mike
 
    I wonder whether the temeperture will vary in the time step when 
I set up the temperature schedule varying ?
     Thank you in advance
       
                                                       charlie


--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "applezealot" 
<applezealot@y...> wrote:
> 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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