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RISFlow-Induced Steam Valve Vibrations—A Literature Review of Excitation Mechanisms, Preventive Measures, and Design Improvements
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Steam turbine inlet valves are used to control the power output of steam turbines for power generation. These valves may be subject to vibration under certain operating conditions, especially in part-load operation. Several ...
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 ...