Altenberg near Linz - local heating network
Our part
in this project
The task
The requirements set for us:
- Expansion of the existing local heating network
- Reliable heat supply for residential units and public buildings
- Use of wood chips from the forests of the participating farmers
- Particulate emission and noise control due to the central location within a residential area
Our solution
The Altenberg local heating network near Linz was expanded with a Magno-SR 800, complementing the existing Magno-VR 550 system and increasing the total output to up to 1,800 kW:
- Magno-SR 800 with an output of up to 1,200 kW
- 42,000-litre accumulator tank
- Particle filter and silencer
- Wood chip storage system with two agitators and fuel extraction augers
- The heating network supplies 200 customers via 100 substations
A centralised energy supply is becoming increasingly important. The municipality of Altenberg in the Mühlviertel region (Upper Austria), for example, has been relying on a centralised heat supply using biomass for many years now. Around 80 % of the residents are connected to the local heating network. Due to the municipality’s growth, the existing plant has been expanded to include an additional heating plant. The two plants, a Magno-SR 800 and a Magno-VR 550, together achieve a peak output of 1,800 kW.
The local heating scheme is operated by the ‘Nahwärme Altenberg’ association, which comprises more than 50 farmers. The participating farmers also supply the required wood chips, there by gaining an additional source of income. At the same time, this ensures the heat supply for the connected customers. The wood chips are transported by wheel loader into the 800 m³ fuel storage facility. From here, they are reliably transported to the heating plant via two recessed 6-metre agitators and a vertical connection auger.
100 substations, 200 customers
80 % heated by the local heating network
When the first heating plant was built 16 years ago, Altenberg near Linz already opted for a Hargassner heating solution, the Magno-VR 550. For the extension, a second heating plant equipped with a Magno-SR 800 was built in just 226 days, providing an output of up to 1,200 kW. Together, the two heating plants achieve a peak output of 1,800 kW and supply around 200 residential units as well as numerous public buildings such as the parish, kindergarten and municipal office.
Fully equipped with advanced technology
As the second heating plant is centrally located within the residential area, an OekoRona 300 particle filter was integrated. It removes fine dust from the flue gases by means of electrostatic particle separation. According to the boiler test report, depending on the fuel and operating condition, it achieves a separation efficiency of 80–90 % compared with operation without the OekoRona 300. In addition, a silencer was installed as a preventive measure. Given the heating plant’s location in the heart of a residential area, this helps to further reduce the noise generated by the system, although it is not required during standard operation.
A small insight
Used products
Find out all the details about the products used in this project and get a better overview of Hargassner heating systems.
More references
Find out which products are used in similar situations and gain a better insight into the world of Hargassner.
