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Re: [EnergyPlus_Support] Input problem in chiller:electric


The six "design" values represent the chiller performance at one operating 
point, usually the published rating point for the chiller.  As the water 
temperatures and part-load change, then the capacity and COP (1/EIR) will 
change.  To define your own performance curves, you will need the manufacturer 
to provide a set of capacity and COP data for a range of condenser and chilled 
water temperatures.  If you do not have access to such data, then use one of 
the sets of curves provided in \DataSets\PerfCurves.idf

Mike


On 3 Feb 2005, at 16:57, wing sun lee wrote:

> 
> Hi,
> 
> 1. For the Chiller:electric Object at the page no. 383 of InputOutputReference
> Doc., the capacity ratio curve.
> 
> How to determine the value of "Ratio of Available Capacity to Nominal Capacity"?
> Is the value of nominal capacity getting from e.g. Carrier's catalogue, then how
> about the value of available capacity and its stand for?
> 
> How to determine the value of "Temperature entering the condenser" and 
> "Temperature leaving the evaporator"? Is these values comming from catalogue and
> what is the difference between these values with "TempCondInDesign" and
> "TempEvapOutDesign".
> 
> Thanks,
> 
> SAMLEE
> 
> 
> 
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> 
> 
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> 
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========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx




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