Governmental Project Profiles

Indiana State Office Building Commission
Indianapolis Department of Public Works
 

Indiana State Office Building Commission

Chilled Water System Upgrades at the Indiana Government Center

Applied was retained by the Indiana State Office Building Commission to convert the existing site chilled water system to a district chilled water building connection on Citizens Thermal Energy district system. The existing system utilized two 800-ton chillers with a chilled water storage tank. The storage tank was open to the atmosphere and was a source of hydraulic upsets and pipe corrosion. The chilled water storage tank was also connected to a computer room system and was utilized as emergency back-up for the normal cooling system. Upgrades required for the chilled water system include new cooling towers, the decommissioning of the chilled water storage tank and connection to the district system so the site chillers can operate in unison with the district chilled water system in a load shedding pattern. Engineering included the installation of 300 tons of emergency back-up computer room chillers, a complete replacement of South building chilled water system, new VSD pumping arrangement, new cooling towers, and control system modifications that will allow the site chillers to operate in a load shed scenario with the district chilled water system. The project was broken down into two separate bid packages, with construction starting in September 2001 and completed in June 2003 for a construction cost of $2,702,000. Applied was also retained to complete the commissioning for both phases of the project.

This project was awarded an Honor Award from ACEC Indiana in its 2004 Engineering Excellence Awards Competition.


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Indianapolis Department of Public Works

AWT Plant-wide Electrical Upgrades

Applied was retained to engineer the replacement of obsolete and corroded electrical service equipment for the Belmont and Southport Advanced Wastewater Treatment Plants. This included the replacement of seven indoor 480V switchgear line-ups, 12 outdoor 480V switchgear line-ups in environmentally controlled buildings, two 2400V unit substations, two 480V unit substations, four indoor motor control centers, and two outdoor motor control centers in environmentally controlled buildings. Applied also designed the addition of two new 13.8 kV switchgear line-ups and two new 13.8 kV interrupter switch line-ups to provide automatic transfer and isolation capabilities to the primary distribution system. Work involved medium and low voltage switchgear, protective relaying, transformers, low voltage switchboards, motor control centers, motor control schematics, and temporary power planning. Equipment arrangements and specifications were developed to be included in a switchgear bid package. Submittal drawing review was performed to assure compliance with the specifications. The temporary power planning was extensive and was developed to maintain service to critical buildings with minimal downtime and interruption. Engineering support was provided to the owner for the bidding and construction phases of the project. The project is currently under construction, with an anticipated completion date of late 2005. The estimated total construction cost of the project is $5,815,000.


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