The Central Utility Plant Systems Upgrade project was part of an overall $2.5 billion Capital Development Program directed by HKS at DFW International Airport. The project included the demolition of existing equipment and the expansion construction to house new equipment to meet the increased demands for electric power usage, chilled water needs and heating requirements.
MULTATECH designed upgrades that included:
Six new 5,500-ton electric-drive industrial chillers, which provide capacity for the existing terminals at the airport, the new Terminal D, Sky Link (automated people-mover system), and other new tenants. Cooling tower capacity will also increase to 35,600 tons.
Five 1,350-ton centrifugal glycol chillers provide the required 20°F glycol for the preconditioned air cooling for the jet bridges. Heat exchangers provide the first stage of cooling for the PCA system. Heating for the PCA system is through heat exchangers each with a capacity of 25,500 MBTUs.
Six-million-gallon 90,000-ton-hour stratified water thermal storage tank, which serves as a means to level the electrical demand for the airport. Water is chilled at night to provide cooling during peak times of the day.
New 25-kV, 72 MVA electric service was located on the north end of the existing plant. The new service was part of the looped distribution system presently serving the airport with an underground system.