Boiler charts

DUOBLOCK

The concept of Duoblok 500 provides for the construction of a supercritical Duoblock class 500 in place of two existing 200 MW units - with total equipment replacement basic. The term Duoblock itself - in this case it means a power unit with two boilers cooperating with one turbine.


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Nominal gross electric power: 500 MWe
Steam capacity of each boiler : 680 t/h
Steam pressure at the boiler outlet : 285 bar
Live steam temperature at the boiler outlet : 600°C
Reheat steam temperature at the boiler outlet : 610°C
Range of loads : 20% - 100%
Fuel type – hard coal with a calorific range : 20 MJ/kg ÷24 MJ/kg
Duoblock efficiency : up to 45%