[Equest-users] Centrifugal Chiller Curves

jordan jackson jordanfrankjackson at gmail.com
Mon Apr 6 15:54:56 PDT 2015

I have been using eQuest to evaluate chiller performance for retrofit
projects. I have not had a problem modeling air-cooled, but I can't seem to
get the data from the reps that I would like for water-cooled centrifugal
projects. I have settled on using standard curves for CAPFT and EIRFT and
using a cubic curve with coefficients created through a curve fit in excel

The manufacturers reps aren't able to produce a capacity or EIR curve as a
function of temperature (entering condenser water temp). Has this been
everyone's experience with this.

I'm attaching the excel file I created to calculate all of this.

Any feedback is appreciated. I'm just concerned about the data I'm
reporting to the client without touching those curves.


Jordan Jackson.
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