Ascension Alexian Brothers, Infrastructure Upgrades, Phase 1

Elk Grove Village, IL

Alexian Brothers Medical Center, exterior


GBA provided engineering design for replacement of cooling towers, bulk oxygen, emergency generators, and the fuel oil system to accommodate facility expansion at the hospital, consisting of more than half a million square feet,


ASHRAE Illinois, Excellence in Engineering Award, 2006

Engineering Design

Alexian Brothers is a 329-bed hospital that treats more than 18,000 inpatients annually.

  • In this infrastructure improvement project, new bulk oxygen and nitrogen tanks, a new fuel oil tank, and two 2,000-kW emergency generators replaced old equipment.
  • A four-cell cooling tower (with space for two future cells) replaced the old six-cell cooling tower to accommodate future facility expansion. The design included several acoustical treatments to meet the nearby property line’s 45-db requirement. Cooling tower fans are equipped with variable frequency drives (VFDs) and premium-efficiency motors.
  • Condenser water pumps are equipped with premium-efficiency motors.
  • The condenser water system includes sand filters and a water treatment system for condenser water.
  • New gas service was brought in as part of this upgrade.
  • Other features include domestic water services with meters, reduced pressure zone devices, and a new quad booster pumps package with VFDs.
  • A 30,000-gallon, double-wall, buried fuel oil storage tank and fuel oil pumps provides fuel for generators and existing boilers.

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