As part of the energy optimisation of its waste-to-energy plant (WtE), EVO Energieversorgung Offenbach AG will renovate its extraction-condensing turbine...
...The energy released by waste incineration is used to produce steam in a steam generator (boiler). The steam from the boiler is fed as superheated steam into the condensing turbine, expands and thereby drives a generator with which power is generated and fed into the electricity grid. The expanded exhaust steam from the turbine pressure—currently about 200 mbar(a)—is condensed by the downstream air-cooled condenser (LUKO1) and returned to the boiler feed water. The renovation of the turbine should reduce the exhaust steam pressure to below 200 mbar(a) and thus increase the generator power output.
To achieve this, additional condenser capacity will be needed in the future, which makes the reactivation of a former air-cooled condenser (LUKO2) necessary. EVO awarded Wallstein Engineering GmbH the contract for the reactivation of LUKO2.
The scope of supply and services includes the planning, calculation, design, delivery, installation and commissioning of eight condenser bundles and two reflux condenser bundles including the steam distributor and integration into the evacuation and condensate system. The bundles are implemented as series monotube ribbed-pipe bundles that are placed on the existing steel structure. The maximum quantity of exhaust steam is 15t/h, the thermal loading is 9.5 MW. Cold commissioning is scheduled for the end of 2015.
For further information, contact Mr Reiner Kissmann at +49 2361 1047-25 or alternatively by email at: r.kissmann@wallstein.de.
