ABIA Cooling Tower Improvements
The Central Utility Plant at Austin Bergstrom International Airport provides both chilled and hot water to the terminal. The cooling plant consists of four centrifugal chillers with dedicated chilled and condenser water pumps, a field-erected three-cell cooling tower with variable frequency fan drives, and a fifteen thousand ton-hour thermal storage tank.
Originally constructed in 1998, the City of Austin Aviation Department requested a Preliminary Engineering Report for the Central Utility Plant in 2010. This report provided budgeting information to lower the probability of unplanned shutdowns of the cooling tower. All of the recommended repairs were given a timeline and opinion of cost, then ranked by level of urgency to clearly establish priorities for future fiscal planning. Encotech, under the direction of Jacobs, Inc., compiled the report for the Central Utility Plant Cooling Tower Improvements.
In 2012, Encotech was assigned to design a portion of the recommended repairs through the City of Austin MEP Engineering Rotation List. The MEP design included the replacement of all three fans, condenser water return piping tees, and a butterfly balancing valve, as well as other maintenance replacements. The structural design included repairs to the wood stairs, a new ship’s ladder for access to the chiller roof, replacement of the fan deck flooring and the required framing to support it.