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Proceedings Papers

Numerical Investigation of Potential Flow Induced Vibrations of Steam Turbine Last Stage Rotor at Low Load Operation – Part 1: Sensitivity to Flutter Occurrence

Lorenzo Pinelli, Filippo Mariotti, Andrea Arnone, Michele Marconcini, Lorenzo Arcangeli, Lorenzo Ciuchicchi, Nicola Maceli
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A013, June 13–17, 2022
Paper No: GT2022-82405
DOI: https://doi.org/10.1115/GT2022-82405
View Paper titled, Numerical Investigation of Potential Flow Induced Vibrations of Steam Turbine Last Stage Rotor at Low Load Operation – Part 1: Sensitivity to Flutter Occurrence
Click here to open pdf in another window PDF for Numerical Investigation of Potential Flow Induced Vibrations of Steam Turbine Last Stage Rotor at Low Load Operation – Part 1: Sensitivity to Flutter Occurrence
Topics: Blades, Flow (Dynamics), Flutter (Aerodynamics), Rotors, Steam turbines, Stress, Vibration
Proceedings Papers

Thermal Bowing of Steam Turbine Shafts: Prediction Methods and Field Data Matching

Rama Raju Vegesna, Damaso Checcacci, Gabriele Girezzi
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A012, June 13–17, 2022
Paper No: GT2022-82389
DOI: https://doi.org/10.1115/GT2022-82389
View Paper titled, Thermal Bowing of Steam Turbine Shafts: Prediction Methods and Field Data Matching
Click here to open pdf in another window PDF for Thermal Bowing of Steam Turbine Shafts: Prediction Methods and Field Data Matching
Topics: Steam turbines
Proceedings Papers

Numerical Modeling of Water Droplets in Compressible Two-Phase Flows Based on Eulerian-Eulerian Method

Takashi Furusawa, Yasuhiro Sasao, Ryo Takata, Hironori Miyazawa, Satoru Yamamoto
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A009, June 13–17, 2022
Paper No: GT2022-81246
DOI: https://doi.org/10.1115/GT2022-81246
View Paper titled, Numerical Modeling of Water Droplets in Compressible Two-Phase Flows Based on Eulerian-Eulerian Method
Click here to open pdf in another window PDF for Numerical Modeling of Water Droplets in Compressible Two-Phase Flows Based on Eulerian-Eulerian Method
Topics: Computer simulation, Drops, Flow (Dynamics), Two-phase flow, Water
Proceedings Papers

Flow Through a Steam Turbine Cascade With a Single Damaged Blade: Effect of Blade Height on Loss and Outflow Angle Distribution

Michael Schmalacker, Leon Cakievski, Stefan aus der Wiesche, Markus Schatz
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A008, June 13–17, 2022
Paper No: GT2022-80950
DOI: https://doi.org/10.1115/GT2022-80950
View Paper titled, Flow Through a Steam Turbine Cascade With a Single Damaged Blade: Effect of Blade Height on Loss and Outflow Angle Distribution
Click here to open pdf in another window PDF for Flow Through a Steam Turbine Cascade With a Single Damaged Blade: Effect of Blade Height on Loss and Outflow Angle Distribution
Topics: Blades, Cascades (Fluid dynamics), Damage, Flow (Dynamics), Leakage, Outflow, Steam turbines
Proceedings Papers

Prediction of Rotating Instabilities in Low Pressure Steam Turbines Operating at Low Load

Oliver Pütz
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A005, June 13–17, 2022
Paper No: GT2022-80368
DOI: https://doi.org/10.1115/GT2022-80368
View Paper titled, Prediction of Rotating Instabilities in Low Pressure Steam Turbines Operating at Low Load
Click here to open pdf in another window PDF for Prediction of Rotating Instabilities in Low Pressure Steam Turbines Operating at Low Load
Topics: Flow (Dynamics), Pressure, Steam turbines, Stress, Transients (Dynamics)
Proceedings Papers

Experimental and Numerical Investigations of the Non-Equilibrium Condensation on the Performance and the Flow Pattern in Steam Turbine

Soichiro Tabata, Kiyoshi Segawa, Tadashi Takahashi, Jin Aoyagi
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A004, June 13–17, 2022
Paper No: GT2022-80191
DOI: https://doi.org/10.1115/GT2022-80191
View Paper titled, Experimental and Numerical Investigations of the Non-Equilibrium Condensation on the Performance and the Flow Pattern in Steam Turbine
Click here to open pdf in another window PDF for Experimental and Numerical Investigations of the Non-Equilibrium Condensation on the Performance and the Flow Pattern in Steam Turbine
Topics: Condensation, Equilibrium (Physics), Flow (Dynamics), Steam turbines, Pressure, Computational fluid dynamics, Modeling, Turbines, Temperature
Proceedings Papers

Numerical Investigation of Potential Flow Induced Vibrations of Steam Turbine Last Stage Rotor at Low Load Operation - Part 2: Rotating Instabilities Detection

Tommaso Diurno, Antonio Andreini, Bruno Facchini, Nicola Maceli, Lorenzo Arcengeli
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A011, June 13–17, 2022
Paper No: GT2022-81921
DOI: https://doi.org/10.1115/GT2022-81921
View Paper titled, Numerical Investigation of Potential Flow Induced Vibrations of Steam Turbine Last Stage Rotor at Low Load Operation - Part 2: Rotating Instabilities Detection
Click here to open pdf in another window PDF for Numerical Investigation of Potential Flow Induced Vibrations of Steam Turbine Last Stage Rotor at Low Load Operation - Part 2: Rotating Instabilities Detection
Topics: Computational fluid dynamics, Exhaust systems, Flow (Dynamics), Rotors, Steam turbines, Stress, Vibration
Proceedings Papers

Experimental and Numerical Assessment of Liquid Film Thickness Under High-Speed Gas Flow

Takayuki Okui, Shunsuke Mizumi, Soichiro Tabata, Yuki Mizushima, Toshiyuki Sanada
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A010, June 13–17, 2022
Paper No: GT2022-81891
DOI: https://doi.org/10.1115/GT2022-81891
View Paper titled, Experimental and Numerical Assessment of Liquid Film Thickness Under High-Speed Gas Flow
Click here to open pdf in another window PDF for Experimental and Numerical Assessment of Liquid Film Thickness Under High-Speed Gas Flow
Topics: Computational fluid dynamics, Fibers, Flow (Dynamics), Gas flow, Liquid films, Probes, Two-phase flow
Proceedings Papers

CFD Analysis of the Forces on a Steam Turbine Balance Seal Packing Ring

Cosimo Bianchini, Riccardo Da Soghe, Davide Bertini, Lorenzo Mazzei, Lorenzo Arcangeli, Lorenzo Cosi
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A014, June 13–17, 2022
Paper No: GT2022-82896
DOI: https://doi.org/10.1115/GT2022-82896
View Paper titled, CFD Analysis of the Forces on a Steam Turbine Balance Seal Packing Ring
Click here to open pdf in another window PDF for CFD Analysis of the Forces on a Steam Turbine Balance Seal Packing Ring
Topics: Computational fluid dynamics, Packings (Cushioning), Steam turbines
Proceedings Papers

Development of a Dynamic Turbine Expansion Model Using a Paired Thermofluid and FEA Methodology

Michael Ross, Wim Fuls
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A001, June 13–17, 2022
Paper No: GT2022-78258
DOI: https://doi.org/10.1115/GT2022-78258
View Paper titled, Development of a Dynamic Turbine Expansion Model Using a Paired Thermofluid and FEA Methodology
Click here to open pdf in another window PDF for Development of a Dynamic Turbine Expansion Model Using a Paired Thermofluid and FEA Methodology
Topics: Finite element analysis, Modeling, Steam turbines, Thermofluids, Turbines, Temperature, Clearances (Engineering), Coal, Nozzles, Power stations
Proceedings Papers

History of Steam Expansion Machines Seen as Polytropic Efficiency Achievements

Hans E. Wettstein
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A003, June 13–17, 2022
Paper No: GT2022-79398
DOI: https://doi.org/10.1115/GT2022-79398
View Paper titled, History of Steam Expansion Machines Seen as Polytropic Efficiency Achievements
Click here to open pdf in another window PDF for History of Steam Expansion Machines Seen as Polytropic Efficiency Achievements
Topics: Machinery, Steam, Steam turbines
Proceedings Papers

Pressure Losses Analysis in Two High-Pressure Steam Turbine Control Valves Situated in One Valve Chamber

Vaclav Slama, Bartolomej Rudas, David Simurda, Jindrich Hala, Martin Luxa
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A002, June 13–17, 2022
Paper No: GT2022-78969
DOI: https://doi.org/10.1115/GT2022-78969
View Paper titled, Pressure Losses Analysis in Two High-Pressure Steam Turbine Control Valves Situated in One Valve Chamber
Click here to open pdf in another window PDF for Pressure Losses Analysis in Two High-Pressure Steam Turbine Control Valves Situated in One Valve Chamber
Topics: High pressure (Physics), Pressure, Steam turbines, Valves, Flow (Dynamics), Stress, Computer simulation, Computer software, Design, Energy conversion
Proceedings Papers

Vortex-Generators Reduce the Dynamic Axial Forces in the Model of a Steam Turbine Control Valve

Stefan Wallat, Christian Musch, Dieter Brillert
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A007, June 13–17, 2022
Paper No: GT2022-80688
DOI: https://doi.org/10.1115/GT2022-80688
View Paper titled, Vortex-Generators Reduce the Dynamic Axial Forces in the Model of a Steam Turbine Control Valve
Click here to open pdf in another window PDF for Vortex-Generators Reduce the Dynamic Axial Forces in the Model of a Steam Turbine Control Valve
Topics: Generators, Steam turbines, Valves, Vortices, Acoustics, Excitation, Cavities, Flow (Dynamics), Diffusers, Pressure
Proceedings Papers

Analysis of Turbulent Effects in a Low-Pressure Model Steam Turbine Operating Under Various Operating Conditions Using Detached Eddy Simulation

Ilgit Ercan, Damian M. Vogt
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A006, June 13–17, 2022
Paper No: GT2022-80523
DOI: https://doi.org/10.1115/GT2022-80523
View Paper titled, Analysis of Turbulent Effects in a Low-Pressure Model Steam Turbine Operating Under Various Operating Conditions Using Detached Eddy Simulation
Click here to open pdf in another window PDF for Analysis of Turbulent Effects in a Low-Pressure Model Steam Turbine Operating Under Various Operating Conditions Using Detached Eddy Simulation
Topics: Eddies (Fluid dynamics), Pressure, Simulation, Steam turbines, Turbulence, Flow (Dynamics), Unsteady flow, Annulus, Arches, Blades
Proceedings Papers

Development of a Design Approach for the Optimization of Steam Turbine Exhaust System Performance Through CFD Modelling

Tommaso Diurno, Stella Grazia Tomasello, Tommaso Fondelli, Antonio Andreini, Bruno Facchini, Leonardo Nettis, Lorenzo Arcangeli
Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T22A013, June 7–11, 2021
Paper No: GT2021-59268
DOI: https://doi.org/10.1115/GT2021-59268
View Paper titled, Development of a Design Approach for the Optimization of Steam Turbine Exhaust System Performance Through CFD Modelling
Click here to open pdf in another window PDF for Development of a Design Approach for the Optimization of Steam Turbine Exhaust System Performance Through CFD Modelling
Topics: Computational fluid dynamics, Design, Exhaust systems, Modeling, Optimization, Steam turbines, Geometry, Diffusers, Engineering simulation, Flow (Dynamics)
Proceedings Papers

Steam Turbine Overspeed Scenarios: Comparison Between API Energy Method and Dynamic Simulation

Fabrizio Piras, Federico Bucciarelli, Damaso Checcacci, Filippo Ingrasciotta
Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T22A012, June 7–11, 2021
Paper No: GT2021-59257
DOI: https://doi.org/10.1115/GT2021-59257
View Paper titled, Steam Turbine Overspeed Scenarios: Comparison Between API Energy Method and Dynamic Simulation
Click here to open pdf in another window PDF for Steam Turbine Overspeed Scenarios: Comparison Between API Energy Method and Dynamic Simulation
Topics: American Petroleum Institute, Simulation, Steam turbines, Design, Stress, Inertia (Mechanics), Rotors, Turbomachinery, Blades, Dynamic models
Proceedings Papers

Assessment of Rotor Stability for Steam Turbine Considering Labyrinth Seal Characteristics of Fluid Destabilization Force and Vibrational Frequency Effect of Bearing Coefficients

Ryokichi Hombo, Kenichi Murata, Yuichiro Waki, Nobuhiro Nagata, Makoto Iwasaki, Kazuyuki Matsumoto
Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T22A002, June 7–11, 2021
Paper No: GT2021-01893
DOI: https://doi.org/10.1115/GT2021-01893
View Paper titled, Assessment of Rotor Stability for Steam Turbine Considering Labyrinth Seal Characteristics of Fluid Destabilization Force and Vibrational Frequency Effect of Bearing Coefficients
Click here to open pdf in another window PDF for Assessment of Rotor Stability for Steam Turbine Considering Labyrinth Seal Characteristics of Fluid Destabilization Force and Vibrational Frequency Effect of Bearing Coefficients
Topics: Bearings, Fluids, Rotors, Stability, Steam turbines
Proceedings Papers

Detached Eddy Simulation of Rotating Instabilities in a Low-Pressure Model Steam Turbine Operating Under Low Volume Flow Conditions

Ilgit Ercan, Damian M. Vogt
Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T22A006, June 7–11, 2021
Paper No: GT2021-58704
DOI: https://doi.org/10.1115/GT2021-58704
View Paper titled, Detached Eddy Simulation of Rotating Instabilities in a Low-Pressure Model Steam Turbine Operating Under Low Volume Flow Conditions
Click here to open pdf in another window PDF for Detached Eddy Simulation of Rotating Instabilities in a Low-Pressure Model Steam Turbine Operating Under Low Volume Flow Conditions
Topics: Eddies (Fluid dynamics), Flow (Dynamics), Pressure, Simulation, Steam turbines, Computational fluid dynamics, Diffusers, Physics, Stress, Annulus
Proceedings Papers

Fast Reconstruction Method of the Stress Field for the Steam Turbine Rotor Based on Deep Fully Convolutional Network

Ding Guo, Tianyuan Liu, Di Zhang, Yonghui Xie
Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T22A020, June 7–11, 2021
Paper No: GT2021-60355
DOI: https://doi.org/10.1115/GT2021-60355
View Paper titled, Fast Reconstruction Method of the Stress Field for the Steam Turbine Rotor Based on Deep Fully Convolutional Network
Click here to open pdf in another window PDF for Fast Reconstruction Method of the Stress Field for the Steam Turbine Rotor Based on Deep Fully Convolutional Network
Topics: Rotors, Steam turbines, Stress
Proceedings Papers

A Novel Test Rig Using Air for Investigation of Vibration and Interaction of Two Steam Turbine Control Valves

Stefan Wallat, Stefan Preibisch, Matthias Strauch, Dieter Brillert
Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T22A004, June 7–11, 2021
Paper No: GT2021-58509
DOI: https://doi.org/10.1115/GT2021-58509
View Paper titled, A Novel Test Rig Using Air for Investigation of Vibration and Interaction of Two Steam Turbine Control Valves
Click here to open pdf in another window PDF for A Novel Test Rig Using Air for Investigation of Vibration and Interaction of Two Steam Turbine Control Valves
Topics: Steam turbines, Valves, Vibration, Design, Fluctuations (Physics), Pressure, Steam, Oscillations, Stress, Turbines