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Energy and power plant technology, gas and steam turbine power plants

Combined cycle line in the Linz Mitte power plant (Austria)

As general contractor, Kraftanlagen München was responsible for the engineering and turn-key erection of a second combined cycle line in the Linz Mitte district heating power plant. The erection of the new combined cycle plant right next to the existing combined cycle line 1A was a particular challenge.

Through the new line 1B, an additional 150,000 households are being supplied with power and 25,000 households with district heating.

Since there was only a limited amount of space for the construction of the combined cycle line 1B, a high degree of planning and logistics was required in order to arrange all required plant components in a manner that was practical and sensible.

All work at line 1B was carried out while line 1A remained in operation. This required a type of construction with low vibrations as well as a greater effort to protect the existing structures during installation.

Since line 1B had to be built and interconnected parallel to the existing line 1A, there is now the option to operate both plants together as well as crosswise.

The steam turbine of line 1B was therefore designed with an absorption capacity that is 30 t/h higher. The generated steam can either be used in the existing heating turbine or in a new condensation machine. That gives the operator optimal plant flexibility. The adaptation and expansion with the complex functions of the crosswise mode of operation required an extensive inventory as well as the re-engineering of the functions of line 1A.

Fact sheet

Customer:
Linz Strom GmbH


Period of execution:
07/2007 – 02/2010


Plant parameters:

  • Electrical power performance: 115 MW
  • Steam turbine: 86 NW (district heating)

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