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Theoretical chiller analysis- impact of ECWT

Theoretical chiller analysis- impact of ECWT

Theoretical chiller analysis- impact of ECWT

(OP)
Hi,

I'm looking to quantify the cost savings of a decreased ECWT in a standard compression chiller, in hopes of showing the importance of an effective chilling tower.  I'd like to put together an example of the effect on efficiency of a 5 degree increase in ECWT, say 90 degrees versus 85, and translate that into cost savings.  Does anyone know of a reference which relates ECWT to COP or efficiency in kW/Ton, either as a graph or table?

Thank you very much for any help.

RE: Theoretical chiller analysis- impact of ECWT

(OP)
That is very close to what I need.  I'm actually looking for the difference when the tower is working inefficiently, so a comparison that relates to higher temperatures (<85 degrees F).  Thanks for the reference, its already getting me on the right path.

RE: Theoretical chiller analysis- impact of ECWT

If you have access to energy simulation software and chiller data it should be relatively straight forward to compare the two scenarios.

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