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Info on the plant:
Characteristics of the power plant:
Building time: 1982 - 1986
Type of plant: condensation plant with fresh water (from river) cooling
Electrical output: 165 MW / 176 MW
Fuel: hard coal, heavy fuel oil, biogenic surrogate fuels
District heating load: 17 MWth
Boiler single pass once through boiler with intermediate superheater
Steam generation: 443 t/h
Live steam pressure: 180 bar
Live steam temperature: 535 °C
IS-pressure: 38 bar
IS-temperature: 535 °C
Combustion installations
Hard coal combustion: 4 Bowl Mills to transfer auxiliary fuel + 2 Beater Wheels
Oil combustion: 12 steam atomizing burners
Steam turbine two casing condensing turbine with single reheating and district heating
Three Phase Synchronous Generator with hydrogen cooling - Rated output: 200 MVA
Flue gas cleaning
Dust removal: electrostatic precipitator efficiency level 99,8%
Nitrogen oxide reducing: two stage nitrogen reducing: primary measures by urea Injection and SNCR
Flue gas de-sulphurisation plant: wet FGD (limestone system) efficiency > 95%
Final product: gypsum for building materials industry
Boiler type is a one-way forced-circulation designed in a suspended vertical type of construction with intermediate superheating and membrane wall construction. The flue gas flow is designed as a dual-train system. Current operating hours are 120,400.
EVT-hard coal-bowl mills types SM 17 & SM 19 were installed for the pulverization of hard coal.
In 1999 the two existing lignite mills were converted into hard coal mills. The two beater
wheel mills were installed as a reserve in case of malfunction of the four bowl mills, and
they are usually only used during an incident.
(2) full load KSB pumps consisting of backing pump and main pump with gear adjustment
Franco-Tosi W21R Double flow, single shaft, two cylinder condensing turbine built as an access pressure
turbine with district heating supply system installed in 1986.
Elin type HDTGD215/2-470 is a 3-Phase Alternator w/static field excitation & hydrogen-cooling installed 1985.
(2) High-Voltage 3-Zone Electrostatic Precipitators with external rectifier.
The Flue Gas Desulphurization Plant operates according to the CHEMICO-MITSUI process.
Through limestone suspension it reaches a degree of desulphurization of more
than 95%. As desulphurization product high quality gypsum is created for the building materials industry.
Transformers by EBG & BBC w/Apparent power of 200,000 kVA & 27,000 kVA are installed.
(2) Vertical Cooling Water Pumps each powered by 591 kW and made by Andritz are installed.
It should be noted that the LIFEX Residual rating gives this Plant an additional 200,000 operating hours which equates to 25 years of base load operation remaining to run this plant.
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