Re: [EnergyPlus_Support] about the chiller models in DOE-2.1E and EnergyPlus

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

How do the two EnergyPlus runs compare?  How do the two DOE-2 runs compare?  
Are the nominal COP/EIR values equal in both programs for each comparison?  The 
models should produce similar results.

Mike


On 18 Feb 2005, at 16:24, beyangj wrote:

> 
> 
> Dear,
> I built a model with DOE-2.1E before, and I built the model again 
> with EnergyPlus, and all the condtions are the same. I found that 
> the electricity consumption of the centrifugal water-cooled chiller 
> in the DOE-2.1E model and in the EnergyPlus model is almost the 
> same. When the centrifugal chiller was substituted by reciprocating 
> chiller in both DOE-2.1 model and EnergyPlus model, I found that the 
> electricity consumption were greatly different. The reciprocating 
> chiller in Energyplus model consumed much more energy. When I set 
> the chiller as air-cooled centrifugal chiller, the same thing 
> happened. The air-cooled chiller in the EnergyPlus model consumed 
> much more energy. Why these happened? I wondered whether the chiller 
> models in DOE-2.1E and EnergyPlus are the same. 
> The chiller models in the EnergyPlus model are set as 
> Chiller:Electric:EIR, and all the coefficients are set as that in 
> PerfCurves.idf in DataSets folder. Thanks in advance!
> 
> Best,
> 
> Steawart
> 
> 
> 
> 
> 
> 
> 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@xxxxxxxx




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