An 8,000m2 watertight basin filled with snow will be the part of cooling system for the new terminal for the Norwegian capital.
Together with the architects Narud-Stokke-Wiig and Norconsult, Cowi is behind the large extension of the airport. The extension is designed to be sustainable both in the construction phase and during operation. One important example is use of 50% less energy compared to the existing 15-year-old terminal buildings.
"Cowi's energy experts have suggested a palette of initiatives to solve the ambitious challenge," said Cowi market manager Thomas Arnung. "One of them is snow cooling. When clearing snow on the runways and taxiways the airport can collect 22,000m3 snow during the winter season to be used for cooling the passenger terminal in the summer. When the system is operating, the snow will cover a cooling need of 2GWh - in the terminal and also be a supplement to the existing cooling system."
The snow storage is isolated to prevent the snow from melting before the summer when will be used to maintain a cool temperature in the airport buildings via a district cooling system.
The overall project covers an extension of approximately 120,000m2 of the existing terminal, a new pier with 19 gates, redesign of the airport apron with new taxi lanes and a redesign of the airport's road aprons. The first phase of the new terminal is scheduled for completion in 2013.
In addition to heating and cooling of the new terminal, Cowi is also responsible for installations for ventilation, IT systems, acoustics, energy and environment consultancy services, fire extension strategy and provides expert consultancy on the design of the terminal.