1003601 The Project New National Museum — K3021 Refrigerating system

Statsbygg Hovedkontor

Contract K3021 shall deliver a complete refrigerating system with ammonia filling and internal automatics for the refrigerating machines which shall be integrated with the project's centralised operational control system
The building has 2 refrigerating systems with free refrigeration with seawater and refrigerating machines. The building's total cooling requirement is 2,905 kW. There is little local cooling in the building as the refrigerating requirement to a large degree is covered by air-cooling. The following machines shall be delivered:
Refrigerating machine Cooling performance Dimensioning conditions Medium in/out of evaporator
[kW] Water temperature in/out condenser
(°C) Fluid temperature in/out of evaporator (°C)
Dehumidification=370,001-IK001 330 33/40 10/5 Water
Process and clitmate cooling =370,002-IK001 575 40/50 3.5/0 Water/glycol (30 %)
Process and clitmate cooling =370,002-IK002 575 30/40 3.5/0 Water/glycol (30 %)
Process and clitmate cooling =370,002-IK003 1,425 33/40 13.5/10 Water
The condenser heating from the refrigerating machines shall be used in the building's heating plant, as well as for snow melting of outdoor areas. The seawater is used during the winter and work as a heating source for the refrigerating machines in heating modus and for dumping surplus heat from the condensers. District heating is used as peak load for the heating plant. As a back-up for the seawater, network water shall be used for dumping the condenser heating.
The total heating requirement for the building is 2,250 kW, in addition to approx. 400 kW snow melting. The heating is through both floor heating, convectors, radiators as well as air.
Contract K3021 shall be a part of the engineering design and shall provide assistance to the Consultative Engineer for HVAC including sanitary installations (RIV), up until publication of technical contracts, summer 2016.

Frist
Fristen for mottak av tilbud var 2015-07-02. Anskaffelsen ble publisert 2015-05-23.

Leverandører
Følgende leverandører er nevnt i tildelingsbeslutninger eller andre anskaffelsesdokumenter:

• • Johnson Controls Norway As

Hvem?

• • Statsbygg Hovedkontor

Hva?

• • Kjøletårn › Vannkjøleanlegg
• • Varmevekslere › Varmepumper
• • Kjøle- og fryseutstyr › Kjøleutstyr
• • Installasjon av ventilasjons- og klimaanlegg › Installasjon av kjøleanlegg › Installasjon av kjøletekniske anlegg

Hvor?

• • Norge