T3 Avinor Flesland 80303 PIpe works

Avinor AS

A complete HVAC system will be supplied to the new terminal building at Flesland (approximately 60 000 m²) divided into the following systems:
1. Sanitation system
The water supply will be placed in the technical routing zone on level C, in the same pipeline as warm and cold pipes. A central hot water preparation facility will be established in the technical rooms.Waste water is carried to 2 central building sewers in east-west direction. For water filling to planes, a central chlorine dosing facility with circulation line via fixed points will be established.
2. Heating and cooling systems
To meet the terminal's heating demand there will be a connection to an external supplier provided.
In the Terminal the main conduit for heating and cooling is carried out as for the ring mains in the technical routing zone.
Shunt groups and exchangers should to the greatest possible extent be centralised and placed in technical rooms.The ventilation unites are equipped with combined heating and cooling coils where cooling is dimensioning.
The main principal for heating in the large volumes is water-borne underfloor heating. In the summer the floor warming system is additionally used as a cooling system.A central exchange arrangement is planned for heating and cooling.
Heating needs in offices and other smaller areas is met by radiators.High glass facades will have draft protection. Doors, ports and other opening out in the open will be equipped with warm air curtains.
Preheating of tap water will be supplied from own exchanger.A central exchange arrangement is planned for snow melting system. Local cooling will mainly be solved with air, but for rooms with extremely dense occupancy or high internal loads fan convectors will be installed. ICT rooms will be equipped with data room coolers and designated back up cooling system.
3. Fire extinguishing system
Preparations for double-sided water supplies with connection on the north side of of the central building. Waterline supplied from water main in the new joint trench. The sprinklers are dimensioned so that 100 L/sec is available, with the capacity minimum of 1 hour. Sprinkler centres and zone valves will be placed in technical rooms in the basement. East facade will be protected by a deluge system.Wet pipe sprinklers will be established for extinguishing water in the terminal.Fire hoses will be connected to the drinking water mains and shall cover all areas. Rooms that are no suitable for sprinkler, for example ICT rooms, to be protected by gas extinguishing system.
4. Thermal energy production
To meet the terminals cooling needs a cooling facility consisting of cooling units and energy storage tanks will be installed.At the same time excess heat from production is transferred back into the building, excess heat is dumped via dry coolers.
5. Options
Options that have been revealed regarding the snow melting system for goods receiving and the driveway to good receiving, booster pump for sprinkler and possiblyservice and maintenance agreements. May be applicable with work related to commercial areas.
6. Other
It may also be relevant to include labour and components to thermal energy.

Fristen for mottak av tilbud var 2014-02-27. Anskaffelsen ble publisert 2014-01-31.

• • Avinor AS

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