Cologne-Merkenich thermal power station
| Cologne-Merkenich thermal power station | |||
|---|---|---|---|
 |
|||
| location | |||
|
|||
| Coordinates | 51 ° 1 '4 " N , 6 ° 57' 51" E | ||
| country | Germany | ||
| Waters | Rhine ( wet cooling tower ) | ||
| Data | |||
| fuel | formerly heavy oil ; today:
|
||
| power | approx. 220 MW (electrical) and approx. 285 MW (thermal) | ||
| operator | RheinEnergie | ||
| Start of operations | 1958 | ||
| Website | www.rheinenergie.com | ||
The heat and power plant Cologne-Merkenich is a thermal power station of the RheinEnergie in Cologne district Merkenich .
The plant is the central producer of district heating for the north of Cologne; The districts of Bocklemünd , Chorweiler and Merkenich are supplied with heat via the so-called northern network with a length of 75 km . In addition to private consumers, commercial and industrial companies are also supplied with heat, process steam and deionized water, in particular the Ford , Deutsche Infineum GmbH and Vinnolit GmbH & Co. KG plants in Cologne-Niehl . The electrical energy generated in cogeneration is fed into the power grid.
There are three chimneys at the location of the thermal power station - the highest (out of order) with its height of 250 m is the second highest structure in Cologne after the television tower Colonius (well in front of the Cologne Cathedral ) and one of the 100 highest structures in Germany .
Around 75 RheinEnergie employees work at the Merkenich site and take care of plant operation (in shift work) and maintenance.
The power plant can be visited.
history
The plant was built in 1956 and started up in 1958 with two boilers . The background at that time was the supply of neighboring industrial companies ( Esso AG ) with steam.
In 1961, the Cologne city council decided to supply the north of Cologne with district heating from Merkenich. In 1962 the first households could be supplied.
By 1969 the system was expanded by three boilers and the Neustadt district heating network was expanded. Originally all five blocks of the plant were fueled with heavy fuel oil. The work was therefore placed directly at the "Oil Harbor" Niehl II , which was built at the same time .
In the years 1985-89 the plant was first extensively modernized to adapt to stricter environmental regulations: The blocks 4 and 5 were on natural gas / light oil changed and with nitric oxide -poor low-NO x gas burners equipped. Units 1-3 were taken out of service and replaced in 1990 by the new boiler 6, in which Rhenish lignite is used in a circulating fluidized bed furnace .
1998-2000 a combined cycle plant was built to replace boiler 5 . After its commissioning, boiler 5 of the old system was shut down in 2004. This also involved the decommissioning of the 250-meter chimney. The steam turbines of the "busbar system" remained in operation and are supplied by the fluidized bed boiler mentioned above.
In 2010 the "busbar system" was separated. Boiler 4 was merged with turbine 2 and is now called block 4. Boiler 6 has been extensively modernized and now forms block 6 with the newly built turbine 6. The old turbine 3 was shut down in spring 2010.
To this day, the plants at the Merkenich HKW site are operated almost exclusively with combined heat and power , which contributes to a particularly high fuel efficiency of up to 80 percent.
Structure and technical data
- Former old boiler 1–3 system (commissioning 1958–1963, shutdown 1986)
- Boiler 4 (commissioned in 1964):
- Firing: natural gas
- Steam output: 150 t / h at 520 ° C / 120 bar
- Boiler 6 (commissioned in 1990):
- Firing: Circulating fluidized bed firing
- Fuels: Brown coal granulate ( Rheinisches Braunkohlerevier ) with approval for the co-incineration of animal meal (animal meal has not been burned since 2008). Start-up firing with natural gas.
- Steam output: 291 t / h at 520 ° C / 120 bar
- Steam turbine turbo sets with electrical power:
- Turbine 1: 5.3 MW (commissioning 1959, shutdown 2007)
- Turbine 2: 23.5 MW (commissioning 1962)
- Turbine 3: 58.3 MW (commissioning 1965, shutdown 2010)
- Turbine 4: 100.0 MW (commissioning 1969, shutdown 2004)
- Turbine 6: approx. 82 MW in condensation operation (commissioning 2010)
CCGT plant
- Commissioning year: 2000
-
Combined gas and steam power plant in a single-shaft arrangement
- Gas turbine : General Electric , type MS6101FA , fuel natural gas , electrical output approx. 72 MW
- Steam turbine : approx. 38 MW (electric)
- Waste heat boiler with district heating surface without additional firing
- Extraction of heating steam as process steam and for district heating supply
- Heating reserve boiler: output approx. 80 t / h process steam to safeguard the process steam and district heating supply.
criticism
The citizens' initiative "Tschö RheinEnergie" criticizes the fact that the burning of lignite leads to a significantly higher level of pollutants and CO 2 emissions than the use of natural gas.
Web links
Individual evidence
- ↑ a b power plants of GEW RheinEnergie AG on www.kraftwerke-online.de ( Memento of the original from December 27, 2004 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ a b c d e Environmental Declaration 2005 of RheinEnergie AG for the Cologne-Merkenich location ( Memento of the original from November 21, 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. (PDF)
- ↑ Heat from Cologne's largest central heating system at www.rheinenergie.com ( Memento of the original from January 4, 2010 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.
- ↑ Press release: Ford is converting its Cologne location completely to environmentally friendly district heating at www.energieagentur-nrw.de
- ↑ Environmental declaration 2014 of the HKW Cologne-Merkenich and Cologne-Niehl. RheinEnergie AG, accessed on August 29, 2016 .
- ↑ Merkenich thermal power station at www.ecoschool.de
- ↑ Visits to www.rheinenergie.com ( Memento of the original dated February 8, 2013 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.
- ↑ Environmental declaration for the Cologne-Merkenich and Cologne-Niehl locations ( memento of the original from March 4, 2016 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.
- ^ Website of the citizens' initiative "Tschö RheinEnergie"
