[EnergyPlus_Support] Re: The problems about multiple chillers.

["well_kong" <well_kong@xxxxxxxxx>]

Hi Mike,

Thank you very much!!

Now I know how to do.

Best regards!

Well Kong


--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Michael J. Witte" 
<mjwitte@...> wrote:
>
> EnergyPlus autosizing does not understand multiple pieces of 
equipment.  It 
> will size each piece to meet the full load, in this case both 
chillers.  
> Whenever you use multiple boilers, chillers, or cooling towers, 
follow this 
> procedure:
> 
> 1.  Run the simulation with the plant equipment autosized.
> 
> 2.  Find the reported equipment capacities (for chillers, boilers, 
etc.) in the 
> eio output file.  The capacity of any one chiller or boiler will be 
the full-
> load capacity.  (You should see the same capacity reported for each 
chiller, 
> for example.)
> 
> 3.  Make a new version of the input file with hard sizes specified 
as needed to 
> allocate the full-load capacity among the chillers (or boilers, 
or . . .).
> 
> Mike
> 
> 
> On 28 Mar 2007 at 3:37, well_kong wrote:
> 
> > I made a model that includes two chillers,and i used design 
objects to 
> > autosize the chillers; but i always find that only one chillers 
> > work,another never work.
> > You know in actual case,it's so different between two chillers 
work and 
> > one chiller works.
> > Who can tell me why?and how to solve this problem.
> 
> 
> ========================================================
> Michael J. Witte, GARD Analytics, Inc.
> EnergyPlus Testing and Support      
> EnergyPlus-Support@...
>




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