ANC South Terminal Cooling Systems Upgrades

 Owner: State of Alaska

 Designer: AMC Engineers

UNIT designed and renovated the Chillers and Cooling Towers at  Ted Stevens Anchorage International Airport - Concourse B and Concourse C. 

The construction in Concourse C included the demolition and installation of a new cooling system. Installation included two water cooled electric driven chillers, two closed circuit evaporative cooling towers and associated pumps, configured in a primary-secondary arrangement on the chilled water side and constant flow primary on the condenser side. Two pumps were be provided on the evaporator and condenser side of the chillers. Three new secondary pumps were provided, one as a standby. All pumps are equipped with variable speed drives (VSDs), with the chiller primary and condenser side pumps operating at a constant speed. The cooling towers have variable speed fans and constant speed spray pumps. The chilled water system piping utilizes treated water, and the condenser side piping utilizes 40% ethylene glycol. Other areas included the installation of maintenance platforms, exhaust fans and LED lighting.

The construction in Concourse D included the demolition and installation of three water cooled electric driven chillers, two closed circuit evaporative cooling towers, and associated pumps configured in a primary-secondary arrangement on the chilled water side and constant flow primary on the condenser side. Three pumps were provided on the evaporator and condenser side of the chiller. Three new secondary pumps were provided, two pumps to meet the system demand and a third pump as a standby unit. All pumps are equipped with variable speed drives (VSD), with the chiller primary loop and condenser side pumps operating at a constant speed. The cooling towers have variable speed fans and constant speed spray pumps. The chilled water system piping was flushed and filled with treated water. The condenser side piping is filled with 40% ethylene glycol. Other areas included the installation of new exhaust fans and LED lighting.