Referencer

Rådhus,
Haderslev,
Denmark

En fleksibel bygning ved vandet

Udfordringen begyndte i 2021, da bygningen blev fuldstændig redesignet for at reducere energispild. Uponor Ecomate blev installeret for at få brugbar indsigt i opvarmning, køling og strømforbrug og forbedre rådhusets energiforbrug og CO2-fodaftryk.

Atriumbygningen med panoramaudsigt er bygget i 2013/14 og byder på arkitektonisk finesse i et fremtidsorienteret havnefrontmiljø. I 2014 blev det tildelt den tyske designpris i "Architecture and UrbanSpace " kategori. Dens 360° design giver et klart udsyn over byen og havnen. Med et samlet areal på 8.600 m², huser bygningen en række undervisningsfaciliteter, kontorer og mødelokaler fordelt på fem etager.

En bygning af denne størrelse med store glasflader og åbne planløsninger gør det svært at styre komfort og energiforbrug samtidigt. Selvom energistatistikken allerede var inden for et godt spænd, var der stadig plads til forbedringer.

Udfordringen begyndte i 2021, da bygningen blev fuldstændig redesignet for at reducere energispild. Uponor Ecomate blev installeret for at få brugbar indsigt i opvarmning, køling og strømforbrug og forbedre rådhusets energiforbrug og CO2-fodaftryk.

Projektets nøglefakta i PDF

Location

Haderslev, Denmark

Gulvplads

8.600

Færdiggørelse

2021

Bygningstype

Kontorbygning

Antal etager

Adresse

Christian X's Vej 39, 6100 Haderslev

Hjemmside

https://www.haderslev.dk/forside/

Projekttype

Renovation

Innovative forbedringer i et inspirerende miljø

Efter installationen af klemmesensorerne blev betydelige mængder data analyseret for at få meningsfuld indsigt fra simple visualiseringer. Med et energiforbrug på 141 kWh/m² /år, altså 376.920 kWh/år, var der stadig plads til forbedringer. De opnåede data gav os indsigt i elforbrug, opvarmning og køling og komfortplaner.

Strømforsyning
Elforbruget var på et højt tomgangsniveau. Ventilationssystemet var aktivt uden for åbningstiden, og temperaturen fra luftvarmeloftet var for høj.

Opvarmning/køling
Den dårlige afkøling af fjernvarmen system førte til et meget højt forbrug, og radiatorerne skulle justeres på alle etager.

Komfort
CO₂ sensorer krævede omkalibrering.

Løsning
Bygningens bebyggede areal udgør 1.472 m2 pr. alle 5 etager. På grund af den åbne arkitektur er der ingen vægge til at isolere de enkelte etager.
Baseret på resultaterne opnået med vores sensorer vurderede vi, at stueetagen kræver 100 % opvarmning. De resterende 4 etager kræver dog kun 20 %. Ved hjælp af denne beregning er det samlede varmeareal på 8.600 m² faldet til 2660,4 m² .
Som følge heraf faldt energiforbruget fra 376.920 kWh pr. 2660,4 m.² kvadratmeter til 141,7 kWh/m² .

Opsparing
Optimering af bygningens varme-, køle- og ventilationssystemer gav følgende besparelser:

311.084 kWh/år
(kombineret varme/køling og el)
27.000 €/år
15,8 tons CO₂ /år
ROI: 3 måneder
Vejrafhængig varmestyring muliggjorde et yderligere energieffektivitetspotentiale på 15 %

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Rådhus,Haderslev,Denmark

En fleksibel bygning ved vandet

Projektfakta

Uponors rolle

Partnere

Innovative forbedringer i et inspirerende miljø

Bygningen vandt følgende priser:

Lignende projekter

Rådhus,
Haderslev,
Denmark