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11-11-2009, 11:04 PM #1
Estimating monthly/yearly energy costs
Anyone know how to estimate typical duty cycles for a typical refrigeration system to estimate the energy costs?
I’m trying to evaluate the energy savings of placing a VFD on a screw compressor. The VFD salesmen is asking what is the typical duty cycle for evaluation purposes.
Is there a simple way to estimate or long way to calculate how much time a typical screw compressors runs at
100%, 90%, 80%..... ect?
Thanks
Dan Acosta
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