Publication Date: 2005-Jan-24
The IP.com Prior Art Database
A system for removal of condensed water from turbine vanes comprises a set of grooves on the surface of the vanes. They are first oriented in the direction of the steam flow and then are curved in the radial outward direction of the vane. The water removed from the vane by means of the grooves is accumulated on the casing where it may be removed via extraction slits and a casing drainage system. The system avoids the use of hollow vanes and extracts the water without entraining any steam. The power output of the turbine thus remains unchanged.