Corrugated hood for low pressure steam turbine

摘要

An arrangement and method adapted for providing a reinforced lower exhaust hood 20 for a steam turbine 100. Double-wall sidewalls 110 (endwalls) for a lower exhaust hood 20 include an outer corrugated wall 130 joined to an inner plate wall 120. The enhanced strength provided by the corrugation provides reduced deformation of the lower exhaust hood 10 and allows reduction of structural complexity and improved aero-performance within the lower exhaust hood.