Turbine operation with FINEAMIN

Steam turbine 29 MW

In-situ cleaning of a steam turbine by dosage conversion to FINEAMIN

  • Removal of scales and deposits on turbines (e.g. iron oxides, silicic acid)
  • Improvement of turbine efficiency and increase of effictiveness

before                              after

Influence of FINEAMIN on turbine effectiveness and increase of efficiency

Without using FINEAMIN in water-steam systems of power plants there may occur a natural oxidation of metal materials to magnetite. These oxides may be porous, up to a thickness of 400 µm and may increase flow resistance. This may result in a lower total effectiveness and lower electric power of steam turbines.

The use of FINEAMIN may result in more stable and compact magnetite layers, which reduces roughness of surfaces and leads to better turbine flow and thereby to an increase of turbine efficiency.

The patented combination of certain Polycarboxylates and Polyamines is leading to both cleaning and dispersing effects in steam systems. In practice thereby scales on condensate turbines could be removed and chamber pressures evidently could be lowered, as well as damages and turbine shut downs could be avoided.

Investigations of B&B-Agema, Aachen, showed in analyse of sensitivity an improvement of turbine efficiency of 1.1 - 2.4 % and so an increase of power plant efficiency of 0.2 - 0.4 %, which relates to an increase of electric power of 700 - 3000 kW for a modern steam power plant unit.

Literature: Dr. Ing. J. Lepers, Dr.-Ing. K. Kusterer (2003), B&B-AGEMA, Gesellschaft für Energietechnische Maschinen und Anlagen, Aachen, GmbH