Würzburg thermal power station
| Würzburg thermal power station | |||
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| location | |||
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| Coordinates | 49 ° 48 '0 " N , 9 ° 55' 24" E | ||
| country |
 Germany
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| Waters | Main | ||
| Data | |||
| Type | formerly coal-fired power plant , combined cycle power plant since 2003 | ||
| Primary energy | Fossil energy | ||
| fuel | formerly coal , since 2003 natural gas | ||
| owner | Würzburg Supply and Transport GmbH (WVV) | ||
| operator | Stadtwerke Würzburg | ||
| Start of operations | 1954 (as a coal power plant) | ||
The Würzburg combined heat and power plant is a combined heat and power plant owned by Würzburger Versorgungs- und Verkehrs-GmbH (WVV) in Würzburg , located on the banks of the Main at the Old Harbor below the Friedensbrücke . The originally coal-fired power plant built in the early 1950s was converted into a natural gas- fired combined cycle power plant in 2003 .
history
Construction and operation as a coal power plant
For the reconstruction of the city after the Second World War, Würzburg planned the construction of a district heating system to supply the city with heat. For this purpose, the construction of the pipeline network in the city center began in 1951 and heat was first fed in from 1952 with a small heating plant that had been provisionally built in a gym of the Haugerschule , which had existed since 1887 .
From 1954 a coal-fired power station was built in two stages at the Old State Harbor. The location was chosen because it was close to the heat supply area (short pipeline routes), the delivery of the fuel by barge across the Main was particularly easy and the water from the Main could be used as cooling water. At the end of 1954, after only seven months of construction, the power plant was ignited for the first time; a further seven months later, steam was fed into the district heating network for the first time.
Technically, the power plant consisted of three coal -fired boiler systems (steam output 2 × 40 t / h + 1 × 64 t / h at 84 atmospheres ) with grate firing . The steam generated was converted into electricity in two steam turbo sets and fed into the district steam system as required. At first, each boiler had its own chimney; In 1967/1968 these were combined into a single, 105-meter-high chimney (popularly known as "Würzburg asparagus"), which had a negative impact on the image of Würzburg's old town due to its height and exposed location.
Conversion to a combined cycle power plant
At the turn of the millennium, for economic and ecological reasons, the WVV made the decision to shut down the aging coal-fired power plant and convert it into a natural gas power plant. This happened in two phases:
In phase I (2003–2005) a gas turbine (make Siemens SGT-800 , 45 MW el ) with waste heat boiler (make Lurgi Lentjes ) was installed on the former coal storage area . The boiler fed its steam to the existing steam turbine, so that the power plant became a combined cycle power plant. In 2005 the new system supplied electricity to the grid for the first time. The old, coal-fired boilers were left to secure the district heating supply. In addition to the old chimney, three new exhaust pipes about half as high were built. The old single chimney was later dismantled from the inside (blasting was out of the question for safety reasons due to the location)
In 2006 the outside area and facade of the power plant were completely redesigned by the Tirschenreuth architects Brückner & Brückner , who had also converted the culture store beforehand . The power plant received several architecture awards for its modern design.
In phase II (2006–2009) the output of the power plant was increased by adding a second gas turbine (make Siemens SGT-700 , 31 MW el ). The coal-fired boiler K II was converted into a waste heat boiler; the old coal furnace was removed. Since natural gas burns more cleanly than coal, the former flue gas filter could be omitted during the conversion. The coal boiler K I , which had become superfluous due to the waste heat boiler I , was shut down; the coal boiler K III is kept ready for operation as a peak load reserve.
Individual evidence
- ↑ a b c d e Power for Würzburg. The thermal power station at the Friedensbrücke. Information brochure of the WVV, Würzburg, May 2009 ( as PDF online at www.arbeitslehre.uni-wuerzburg.de ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and remove it then this note. )
- ^ Harm-Hinrich Brandt : Würzburg municipal policy 1869-1918. In: Ulrich Wagner (Hrsg.): History of the city of Würzburg. 4 volumes; Volume III / 1–2: From the transition to Bavaria to the 21st century. Theiss, Stuttgart 2007, ISBN 978-3-8062-1478-9 ), pp. 64-166 and 1254-1267; here: p. 138.
- ↑ a b c District heating in Würzburg at www.wvv.de (accessed on August 6, 2010)
- ↑ The Old Harbor in Würzburg at www.wuerzburg-fotos.de (accessed on August 6, 2010)
Web links
- PDF brochure Power for Würzburg - The thermal power station on the Friedensbrücke , 2.5 MB (via archive.org , as of April 15, 2010 - original no longer available online)