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Re: [EnergyPlus_Support] Plant scheme Problem



If I understand the question correctly, you should set the load distribution 
option to be SEQUENTIAL, not OPTIMAL.  SEQUENTIAL runs the first piece of 
equipment until it is fully loaded, then activates the next piece of equipment 
and so on.

Mike


On 14 Jul 2006 at 1:36, energypluser wrote:

> Dear all
> 
> I am using a purchased chilled water accompany with a constant cop chiller to
> work as the 
> cooling plant equipments. 
> I want that the PCW supply the chilled water when the cooling load is less
> than 10kW. And the 
> constant cop chiller will work to supply additional chilled water when the
> demand is bigger 
> than 10kW ( the PCW is still working).  So I set the PCW as the primary
> equipment in the plant 
> equipment list, and the chiller as the secondary equipment.
> But I found that the chiller suppy much more chilled water during the yearly
> simulation, when 
> the load is bigger than 10kW. For most cases, the chiller was working at its
> rated capacity. 
> Since the flow rate of the chiller is variable and the load distribution
> scheme is optimal, I do 
> not know how to control the chiller now.
> How can I fix the problem?
> Thank you in advance
> 
> mac.cz
> 
> 
> 
> 
> 
> 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@xxxxxxxx





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