[EnergyPlus_Support] Re: primary-secondary plant loop system with different setpoint temperatures

["christian1855" <christian.schiefer@xxxxxxxxx>]

Mike,
is there any other E+ object which can be used to to build up a 
primary-secondary plant loop system with different setpoint 
temperatures? 
I have searched the documentation for a water to water heat exchanger 
to connect the plant loops, but I haven't found anything.

Christian


--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Michael J. Witte" 
<mjwitte@g...> wrote:
>
> 1.  No, the current connection component assumes that the secondary 
water 
> temperature will be the same as the primary.  A controllable 
connection 
> component is planned for the next major release in 2006.
> 
> 2.  This is a known bug in 1.2.3.023 which affect certain types of 
systems.  
> The errors occur in some of the early iterations due to a misplaced 
pump heat 
> adjustment.  These errors can be ignored and the fix has a very 
minimal impact 
> on overall results.
> 
> Mike
> 
> 
> On 4 Nov 2005, at 17:29, christian1855 wrote:
> 
> > Can I use the CONNECTION COMPONENT:PLANTLOOP to build up a 
primary-
> > secondary plant loop system with different setpoint temperatures?
> > 
> > I've tried to adapt the TermReheatPri-SecLoop example:
> > Just added a new setpoint schedule with const. 12°C and used this 
> > schedule in the secondary loop setpoint manager.
> > But this did not work as expected. I.e. it does not change the 
> > temperature in the secondary loop.
> > Have I forgotten something?
> > 
> > 
> > And by the way, even the original TermReheatPri-SecLoop example 
gives 
> > a lot of warnings (E+ v1.2.3). 
> >  ** Warning ** Error -- Mass Flow Rate Calculation in Plant 
> > Loop=CHILLED WATER PRIMARY LOOP, Outlet and Inlet differ by more 
than 
> > tolerance.
> > Should I ignore this warnings?
> > 
> > Christian
> > 
> > 
> > 
> > 
> > 
> > 
> > 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.
> > 
> > EnergyPlus Documentation is searchable.  Open EPlusMainMenu.idf 
and press the
> > "search" button.
> > 
> > Yahoo! Groups Links
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> 
> 
> 
> ========================================================
> Michael J. Witte, GARD Analytics, Inc.
> EnergyPlus Testing and Support      
> EnergyPlus-Support@g...
>






------------------------ Yahoo! Groups Sponsor --------------------~--> 
Fair play? Video games influencing politics. Click and talk back!
http://us.click.yahoo.com/T8sf5C/tzNLAA/TtwFAA/dkFolB/TM
--------------------------------------------------------------------~-> 

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.

EnergyPlus Documentation is searchable.  Open EPlusMainMenu.idf and press the "search" button.
 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/EnergyPlus_Support/

<*> To unsubscribe from this group, send an email to:
    EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/