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Highly Efficient Boilers
Two examples of highly efficient
utility steam generators from
Hitachi Power Europe: Neurath (top)
and Datteln (bottom)
Thousands of welds, hundreds of miles of pipes, several ten thousand tons of steel
structures: the heart of every fossil-fired power plant is the utility steam generator (boiler).
This is where the pulverized fuel is combusted at approx. 1,450 °C and where the hot
flue gases and very hot steam under extremely high pressure (subsequently driving the
turbine blades) arise.
With a track record going back over 100 years, Hitachi Power Europe is one of the
market and technology leaders in utility steam generators. Our references are made up
of over 370,000 megawatts of power plant capacity (180,000 MW in coal firing,
43,000 MW in lignite firing and 140,000 MW in oil and gas firing) installed since 1970.
HPE develops, constructs and supplies steam generators for over 1,100 MWel unit
outputs involving 300 bar+ pressures, 600 °C live steam temperatures and reheater
temperatures up to 620 °C for all available fossil fuels. These range from coal / lignite to
problematical fuels (e. g. gases from coke ovens / steel works, refinery residues).
Utility steam generators are being constantly refined for operation – with the use, for
instance, of new highly resistant materials – under even higher steam temperatures and
pressure. In this way, the degree of efficiency of tomorrow’s coal-fired power plants
can be raised to over 50 %.
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