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Numerical Characterization of the Performance Curve of a Regenerative Pump-as-Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Energy companies in the power generation field are continuously searching for green technologies to reduce pollutant emissions. In that context, small hydropower plants represent an attractive solution for distributed ...
Numerical Analysis and Design of New Exhaust Section Downstream of Constant Volume Combustor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Pressure gain combustors (PGC) exploit either their isochoric or detonative combustion increasing the theoretical thermal efficiency of a gas turbine cycle. On this basis, a constant-volume combustor (CVC) is developed ...
Clocking Effects of Inlet Nonuniformities in a Fully Cooled High Pressure Vane: A Conjugate Heat Transfer Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A highpressure vane (HPV) equipped with a realistic filmcooling configuration has been studied. The vane is characterized by the presence of multiple rows of fanshaped holes along pressure and suction side, while the leading ...
Autonomous Uncertainty Quantification for Discontinuous Models Using Multivariate Padé Approximations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Problems in turbomachinery computational fluid dynamics (CFD) are often characterized by nonlinear and discontinuous responses. Ensuring the reliability of uncertainty quantification (UQ) codes in such conditions, in an ...
Analysis on the Effect of a Nonuniform Inlet Profile on Heat Transfer and Fluid Flow in Turbine Stages
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an investigation of the aerothermal performance of a modern unshrouded high-pressure (HP) aero-engine turbine subject to nonuniform inlet temperature profile. The turbine used ...
An Efficient Iterative Coupled Model for the Study of the Insurgence of the Morton Effect in Tilting Pad Journal Bearings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The introduction of the tilting pad journal bearing (TPJB) technology has allowed the achievement of important goals regarding turbomachinery efficiency in terms of high peripheral speed, enhanced power density, higher ...