Re: [EnergyPlus_Support] power steps

["Michael J. Witte" <mjwitte@xxxxxxxx>]

There is no direct way to model this, and there are no examples of this.  For 
some of these components, one could set up multiple coils in series with each 
other, and additional units would come on if the upstream units were unable to 
meet the desired supply air setpoint.  For reheat coils, this cannot be done.  

Because EnergyPlus controls are ideal, even if there were multiple steps, the 
controls would cycle the final step to attempt to meet the setpoint exactly.  
So, I do not think this added complexity would have a significant impact on 
overall energy use in the simulation.

Mike


On 24 Oct 2005, at 21:57, dust_broom wrote:

> Hi
> 
> I would like to know if its possible to model a component like a 
> reheat coil, humidifier or Dx cooling coil, having power steps.
> For example, a reheat coil of 4500 W working in three steps of 1500 W. 
> If its possible, in which group is that option? is there an example?
> 
> Thank you, Emanuel
> 
> 
> 
> 
> 
> 
> 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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