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RISOptimization Strategy for a Coupled Design of the Last Stage and the Successive Diffuser in a Low Pressure Steam Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, an effective yet numerically simple approach for a coupled design of the last stage running blade and diffuser is presented. The method applied uses a twodimensional streamline curvature code combined with ...
Clarifying the Physics of Flow Separations in Steam Turbine Inlet Valves at Part Load Operation and Improved Design Considerations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In steam turbine inlet valves used to adjust the power output of large steam turbines, the through-flow is reduced by lowering the valve plug and hence reducing the cross-sectional area between the plug and the seat. At ...
Numerical Investigation on the Time Variant Flow Field and Dynamic Forces Acting in Steam Turbine Inlet Valves
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The unsteady flow in inlet valves for large steam turbines used in power stations was investigated using the method of computational fluid dynamics (CFD). As the topology of the flow depends on the stroke and the pressure ...
Investigation on Flow-Induced Vibrations of a Steam Turbine Inlet Valve Considering Fluid–Structure Interaction Effects
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The power output of steam turbines is controlled by steam turbine inlet valves. These valves have a large flow capacity and dissipate a huge amount of energy in throttled operation. The dissipation process generates strong ...