2011 ASHRAE Technology Awards: Cool Weather Savings: Using Hybrid Refrigeration Systems for Chiller Retrofit
A chiller at a medical building in South Burlington, Vt., prompted engineers to devise a solution that fixed the chiller and provide ongoing energy savings. Using a fractional horsepower, magnetically coupled, hybrid refrigerant pump, a VFD, DDC equipment, programming changes, and other safety devices, data showed that the post-retrofit chiller consumed an average of 267.50 kWh per day, with an average savings of 15.46 kW.
Authors: By Peter F. Bailey; Walt Joncas; and Greg Dodge
Citation: ASHRAE Journal, vol. 53, no. 8, August 2011
Publish Date: August 2011
Free Download: Downloadable - ASHRAE-D-AJ11Aug05_20110801.pdf