Energy-efficiency improvements by joint operation of two DH systems using old condensing turbines

The design concept and optimization procedure are presented. The total heat load for both systems at peak conditions is estimated to be 1,216 MJ/s in 2001. The thermal power plant consists of six steam-condensing units with a total electric capacity of 1650 MWe at the generator terminals. It will be converted for CHP operation and will supply heat to both systems. The energy-efficiency improvements are maximised with CHP and system optimization.