The New Deichmanske Library

The New Deichmanske Library - Bjørvika, Oslo

Deichman is equipped with Thermally Active Building System - a system for storing the energy in the concrete ceiling. It is primarily a cooling system, but it can also be used as a heating system. When in cooling mode, no energy is used as the heat is drawn into the concrete, only when it is transferred from the concrete and into the water pipes that are cast in the decking. The need for installed power is reduced, and operating expenses are significantly reduced as opposed to in a air-based cooling system. The TABS is cast into the Prefab elements, which is a BubbleDeck construction with spans up to 10.5 meters.
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The building is situated in Bjørvika, right next to the Norwegian Opera House. The total area is approximately 23,500 m2 , divided into 5 floors above ground and 2 floors below ground.
Deichman has 4 floors equipped with TABS - Thermal Active Building System. This is a cooling and heating concept where we store the energy in the concrete ceilings. New in Norway, but a proven concept in central parts of Europe. Uponor has designed and delivered equipment to more than 1,000 buildings with TABS since 1997.
TABS - Thermal Active Building Systems - is a principle for thermal activation of concrete ceilings. The surplus heat in the room is stored in the concrete layer, and extracted from the building via water-conducting pipes that are embedded in the concrete. The cooling capacity is 60 W / m2.
The room temperature will vary from a selected starting temperature, e.g. 20 degrees, in the morning and increase to a chosen maximum level, eg. 25 degrees - which often occurs towards the end of the workday. The circulation pump for the cooling water will then start. The two temperatures are chosen according to the building's application, and is optional.
In heating mode, the TABS ceilings can deliver 30 W / 2. Deichman is a so called passive energy house with a heat requirement of about 15 W / m2. The flow temperature of the circulation water regulates the effect.

Project Information

Bjørvika, Oslo



Project Type
New Build

Building Type
Office building

Product Lines
Uponor Aqua Pipe, Uponor Q&E, Uponor Vario, Uponor Vario PLUS, Uponor Comfort, Uponor Classic

8.000 kvm


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