[Bldg-sim] Worse Performance with Chiller Curves?

[Oleksandra Onisko]

Hi All,

I am trying to take credit for better part load performance of a chiller by
modifying the EIR_FLRP curve.  I am using the curve-fit feature in eQuest to
fit to the raw data and then inserting it into the DOE file ( I am using
EE4).  The chiller should have better performance than the default, but my
results seem to disagree as my cooling energy doubles.  Am I missing
something? My resulting co-efficient are :
a=1.16801012,b=-1.92066431,c=1.75265419.

The chiller data is as follows

[image: image.png]
_______________________________________

Oleksandra Onisko, B.A.Sc., LEED AP
Project Manager & Energy Modeler

ECOVERT | Sustainability Consultants
                   Office 416.350.2002
                   Direct Line 416.987.1105
                   Fax 416.766.5021
                   55 Ormskirk Avenue
                   Toronto, ON, M6S 4V6
                   www.ecovert.ca
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