Air Cooled Condenser condensate exhaust steam from the turbine and it return the condensate to the boiler. That is in power plants steam is used to rotate the turbine. After the application, the steam will be a waste one. So as an economical part of operation, the steam is re condensate to water and then re-used for boiler feed water.
The Air Cooled condenser is made of modules arranged in parallel rows as like Air Cooled Heat Exchanger. The module contains number of Finned Tube bundle. The axial flow forced draft fan is fixed in the module and forces the atmospheric cooling air across the Condensate area of the fin tubes.
The scope of supply of an Air Cooled Condenser will include all turnkey job from supporting structure, steam ducting from the steam turbine interface and all auxiliaries like pumps, duct drain tanks, instrumentation and air evacuation units related piping works.