Biomass cogeneration plant in Baden
| Biomass cogeneration plant in Baden | |||
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| location | |||
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| Coordinates | 47 ° 59 '32 " N , 16 ° 15' 41" E | ||
| Data | |||
| Primary energy | Bioenergy | ||
| fuel | Forest wood chips (40,000 t / a) | ||
| power | 5 MW (electric) | ||
| operator | EVN warmth | ||
| Start of operations | 2006 | ||
| turbine | Extraction condensation turbine (B + V Industrietechnik) | ||
| boiler | Water tube boiler (32 t / h steam, 70 bar, 485 ° C) | ||
| Firing | Grate furnace (Bertsch, A-6700 Bludenz) | ||
| Exhaust gas cleaning | Cyclone , electrostatic precipitator (Scheuch, A-4971 Aurolzmünster) | ||
| Website | |||
The Baden biomass cogeneration plant is a biomass cogeneration plant located in Tribuswinkel near Baden near Vienna . It supplies the Baden district heating network and is operated by EVN Wärme .
history
At the end of the 1950s, the municipality of Baden decided to set up its own district heating network to supply the city's own buildings, and by 1957 a district heating output of 8 MW was available. This was also the beginning of the Baden district heating network, as other objects were subsequently also supplied.
From the beginning in 1956, heating oil was used heavily . In 1983 the energy supply was switched to natural gas when the then NIOGAS set up a high pressure connection for natural gas as part of the expansion of the gas supply. EVN acquired the district heating network from the city in 1996 and has been the operator ever since. In 2005 it was decided to convert the heat supply to biomass and in 2006 the new thermal power station went into operation; this is located in the municipality of Tribuswinkel and is connected to the old district heating plant in Baden, on the basic permanent way, by a district heating transport line.
Technology of the biomass cogeneration plant
The biomass, exclusively wood chips , is delivered to the plant by trucks and tractors. First they drive over a weighbridge and then tip the wood chips into a bunker. From there, the wood chips from the forest are transported via moving floors and conveyor belts to a bunker room with a storage capacity of around 5,000 SRM .
After storage, the fuel is transported to the boiler - designed by the Austrian company Bertsch - which has a fuel heat output of around 28 MW and is operated with a drum pressure of around 63 bar (a). The superheater heats the steam to around 480 ° C before it is fed to the turbine. In order to ensure optimum combustion, the combustion air is preheated to around 200 ° C with turbine exhaust steam and fed to the boiler, which also means an improvement in boiler efficiency.
The heart of the thermal power station is a steam turbine from Blohm + Voss , coupled by means of a gearbox to a generator from Elin (Weiz) with an electrical bottleneck output of 5 MW. The electrical energy is generated in a turbo generator with a voltage of 6.3 kV and transformed to 20 kV via a machine transformer in order to feed into the electrical medium- voltage network of the Vienna energy.
The steam turbine has a pressure- and volume-regulated extraction from which steam is extracted for the district heating supply of the Baden network.
The exhaust gas is cleaned by a multi-cyclone and an additional electrostatic precipitator .
Water tube boiler from Bertsch
Energy industry
The biomass cogeneration plant is recognized as a highly efficient combined heat and power plant , as the primary energy savings in the combined generation of electricity and heat are greater than 10%.
| Art | Power in MW | Work in GWh | amount |
|---|---|---|---|
| Wood chips | 28 | 174,000 | 200,000 SRM |
| electricity | 5 | 36,000 | Needs of 10,000 households |
| warmth | 18th | 72,000 | Needs of 10,000 households |
ecology
The CO 2 - a saving of more than 30,000 tons per year. The local added value is high due to the use of wood chips from the nearby Vienna Woods as a primary energy source and there is a balance between renewable raw materials and consumption. The heat generation of the biomass cogeneration plant is about as high as all households in Baden use in terms of space heating energy; but since not all households are connected, heat is also supplied to schools and businesses. About 1.6% of the Lower Austrian population live in Baden and the biomass cogeneration plant requires about 1.3% of the Lower Austrian wood increment, which can be extracted sustainably, i.e. taking into account the biomass requirement for soil protection and valuable wood extraction.
literature
Electricity from Solid Biomass - State of the Art and Future Developments; A. Hammerschmid;
Turbine picture with explanation
If you move the mouse pointer over the picture, you get an explanation of the components, with the corresponding link in Wikipedia.
Steam turbine of the biomass cogeneration plant . Year of construction 2006, power: 5,000 kW, rotor speed: 12,000 1 / min
Web links
- Entry on "Biomass district heating power station Baden" on the website of architekturlandschaft.niederösterreich
Individual evidence
- ↑ a b B + V Industrietechnik GmbH ( Memento of the original from January 7, 2011 in the Internet Archive ) Info: The archive link was automatically inserted and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Page 12; Retrieved December 24, 2010
- ↑ a b c d Reference list from Bertsch ( page can no longer be called up , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. As of May 5, 2010
- ↑ E-Filter , as of May 2010
- ↑ Heat from biomass - EVN ( Memento of the original from January 22nd, 2010 in the Internet Archive ) Info: The archive link was inserted automatically and not yet checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ a b Morris A. Pierce Ph.D., district energy historian and energy manager, University of Rochester ( Memento of the original from October 11, 2008 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. As of August 22, 2010
- ↑ Press release EVN AG of October 12, 2006; As of May 21, 2010
- ↑ (PDF; 753 kB) Andreas Oberhammer, System Optimization of a Biomass Cogeneration Plant for the Regional Energy Demand of a Municipality - Practical Example , as of May 21, 2010
- ↑ ELECTRICITY FROM SOLID BIOMASS - STATE OF THE ART AND FUTURE DEVELOPMENTS
