Denmark
In Slotsbjergby on the Danish island of Zealand, Dimplex was in charge of installing a new concept of a decentralized, climate friendly local heating network, thereby replacing the old gas-fired district heating network.
The network includes 47 apartments in three buildings. Inside those buildings themselves, there was no room for the hydraulics which is why Dimplex developed a tailor-fit solution with three LA 60P-TUR heat pumps and a plug-&-play-container hydraulic station. The heat pumps use the eco-friendly refrigerant R290 and achieve high efficiency values. In the container, one finds all of the technical equipment which allows for a quick installation and easy servicing.
Lessons learned
- Local solutions can replace broad District Heating
- Pre-planned plug-&-play solutions allow for system installation within a single day
Key facts
| Building | Heat Pump and Source | ||
| Location | Slotsbjergby, Denmark | Number of HP | 3 for SH |
| Construction | 1975 | Operation mode | monoenergetic |
| Retrofit | 2023 | Heat source | air |
| No. of apartments | 47 | Type of system | central–decentral |
| No. of buildings | 3 | Model | Dimplex LA 60P-TUR |
| Level of insulation | poor | Installed power | 180 kW |
| Heating sytem | Domestic Hot Water | ||
| Heating temp | 64°C +/- 2°C | System | decentral |
| Device | EL heaters | ||
| Other information | |||
| Climate Zone | Csb | SCOP (35°/55°) | 4.35/3.54 |
| Buffer storage | 1000 l | Refrigerant | R290 |
Description of the technical concept
From planning to implementation, only ten months passed. The project shows that individual system-solutions with heat pumps are an important step to sustainable heating and climate neutrality.
Three air-source heat pumps are controlled from inside the container (see below). From there, three heating circuits, circulation pumps and the 1000 l buffer storage are operated as well. Domestic Hot Water still happens via a decentral and electrical production.
DK001 – From Fossil District Heating to a Green Quarter
Case study delivered by: Bundesverband Wärmepumpe bwp BWP-Datenbank | Bundesverband Wärmepumpe (BWP) e.V.