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RISNumerical Simulation of a Pump–Turbine Transient Load Following Process in Pump Mode
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the simulation of the dynamic behavior of variable speed pump–turbine. A power reduction scenario at constant wicket gate opening was numerically analyzed from 100% to 93% rpm corresponding to a power ...
Flow State at Impeller Inlet: Optimization of Conical Frustum Section of Elbow Inlet Conduit in Large Low-Lift Pump Station
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In large low-lift pump stations, the pump assembly comprises an inlet conduit, a pump, and an outlet conduit. A short conical frustum section that connects the elbow section with the impeller inlet directly affects the ...
Analysis of the Unstable Behavior of a Pump Turbine in Turbine Mode: Fluid Dynamical and Spectral Characterization of the S shape Characteristic
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The most common mechanical equipment adopted in the new generation of pumpedhydro power plants is represented by reversible pumpturbines (RPT), required to rapidly switch between pumping and generating modes in order to ...
Lagrangian Analysis of Unsteady Partial Cavitating Flow Around a Three-Dimensional Hydrofoil
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study employs an incompressible homogeneous flow framework with a transport-equation-based cavitation model and shear stress transport turbulence model to successfully reproduce the unsteady cavitating flow around a ...