The joint engineering precinct is a two-stage project that will:

  • connect two neighbouring chilled water systems to improve overall energy consumption
  • replace old, inefficient chiller plant
  • provide enough chilled water capacity to air condition the new Andrew N. Liveris building.

Stage 1 of the project is near completion, and will join the two existing chilled water systems in the Advanced Engineering Building (AEB) and the Hawken building.

The four Hawken chillers serve the engineering chilled water precinct, and are some of the oldest and most inefficient chillers at UQ. Three of have reached their end-of-life stage and still use refrigerant R22, which is being phased out.

The relatively new AEB features modern, efficient chillers with plenty of spare capacity. If these chillers were given an additional workload, they would run more efficiently.

The “business as usual” approach would simply replace the old chillers in the Hawken building with new ones. However, by joining the two precincts together, the AEB chillers will operate more efficiently and achieve an overall energy reduction of 800,000 kWh, worth $100,000 per annum.

Stage 2 of the project will involve expanding the capacity of this combined system to accommodate the 11-storey Andrew N. Liveris building.

AEB chiller
(click to enlarge)
New chilled water pumps
(click to enlarge)
New AEB pipework
(click to enlarge)