In the city of Cottbus a pressurised fluidised-bed CHP power station was commisioned. The flue gas from the fluidised bed is passed through a high-pressure cyclone, is cleaned and fed into a gas turbine downstream.

This drives a turbo compressor, in which the fluidisation and combustion air are pressurised to be fed into the reactor. Steam produced by the fluidised-bed boiler is supplied to a turbine, from which afterwards steam for the district heating circuit and the condensers is taken out at different pressures. The steam turbine can be complementarily supplied by two peak-load gas-fired boilers. The PFBC steam generator is fired with brown coal of the region, which is used in this plant efficiently and environmenally-friendly.

The computation of the operational costs and the optimization of the operation of the CHP station was done on the basis of software already available in the Institute. This resulted finally in an energy management system for the plant.