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techni
05-02-2009, 09:21 PM
How do I determine the COP of a 12 year old centrifugal chiller ?
frank
05-02-2009, 09:26 PM
Plot the running parameters on to a Mollier Chart and do the maths.

Sorry, but, there is not really any other way.
nike123
05-02-2009, 11:45 PM
Measure flow at evaporator and delta T of water/glycol and calculate cooling capacity from that.
Measure chiller power consumption and divide calculated cooling capacity with that, and you got your actual chiller COP.