Steam Engines - an overview | ScienceDirect Topics

This steam causes the rotation of the steam turbine, driving the electricity generator. Exhaust steam is then condensed in a cooling tower and the water recycled into the boiler. The coarse ashes are recovered at the bottom of the boiler and the fine ashes—called fly ashes—are trapped into a cyclone l2 where the finer particles are blocked in filters (electrostatic or tissue filters).