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RISNatural Cooling and Startup of Steam Turbines: Validity of the Over Conductivity Function
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The temperature drop during natural cooling and the way in which the steam turbine restarts have a major impact on the cyclic lifetime of critical parts and on the cyclic life of the whole machine. In order to ensure the ...
Experimental and Numerical Investigation Into the Aerodynamics of a Novel Steam Turbine Valve and Its Field Application
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Control valves are one of the key steam turbine components that guarantee operational safety in a power plant. There are two aerodynamic aspects, which are the current focus for the development of Alstom's valves. One is ...
Computational Fluid Dynamics Modeling of Low Pressure Steam Turbine Radial Diffuser Flow by Using a Novel Multiple Mixing Plane Based Coupling—Simulation and Validation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The diffuser and exhaust of low pressure steam turbines show significant impact on the overall turbine performance. The amount of recovered enthalpy leads to a considerable increase of the turbine power output, and therefore ...
Experimental Investigation Into Thermal Behavior of Steam Turbine Components—Temperature Measurements With Optical Probes and Natural Cooling Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The steam turbine cooldown has a significant impact on the cyclic fatigue life. A lower initial metal temperature after standstill results in a higher temperature difference to be overcome during the next startup. Generally, ...