This new eight-story, 300,000-square foot facility supports ambulatory services and surgeries. G/BA provided M/P/FP design services for the $111 million LEED Gold project, with electrical design by a partnering firm.
Three mechanical areas were provided: basement (chillers, pumps, boilers, medical gas compressors, plumbing and fire pumps, emergency generator); fourth floor (air handling units, exhaust fans, electrical); and penthouse (cooling towers, stair pressurization fans, boiler stack). Centralizing ventilation distribution at the fourth floor mid-level helped the team minimize duct risers/shafts and manage outdoor air intake and exhaust separation. Features include an enhanced building envelope (high-performance windows, insulation); low-velocity coil and filter design; reduced lighting power density; high-efficiency condensing heating hot water and domestic hot water boilers; high-efficiency chillers with VFD; variable-primary chilled water flow; and cooling tower VFDs.
Compared with a baseline design under ASHRAE 90.1-2007, the design achieves a 22.1% cost savings; using IECC 2012/ASHRAE 90.1-2010, savings are calculated at 12.3%, or more than $109,000 a year. The project's energy saving measures resulted in more than than $58,000 in incentives from ComEd and nearly $24,000 from Nicor.
|2014 Excellence in Engineering Award, ASHRAE Illinois Chapter.|