Advocate Good Samaritan Hospital encompasses about 1.07 million square feet and has been serving Downers Grove and the surrounding suburbs for more than 30 years. The hospital pursued a chiller plant replacement to provide a more energy efficient cooling system, improve reliability, reduce staff labor related to chiller plant maintenance, and eliminate CFC-containing refrigerants in compliance with the Montreal Protocol.
The project included replacement of three (of four) main chillers serving the hospital, as well as new chilled water and condenser water pumps. The three chillers that were replaced were more than 30 years old. Good Samaritan, in consultation with Grumman/Butkus Associates, developed a master plan for upgrading the cooling systems. Once funding was secured, the chillers were pre-purchased based on lowest life cycle cost, reducing the total construction period and optimizing chiller selection. The chosen equipment consists of high-efficiency, 1,100-ton dual-compressor centrifugal chillers with variable frequency drives and new premium-efficiency motors.
G/BA worked with Advocate and the Energy Center of Wisconsin to secure $197,463 in energy efficiency incentives as part of ComEd’s Smart Ideas program. The upgrade is projected to save more than 1.9 million kWh of electricity annually, resulting in roughly $198,000 of savings a year.
|2014 Excellence in Engineering Award, ASHRAE Illinois Chapter.|