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Lorenzo Arcangeli
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Proceedings Papers

Development of a Low-Pressure Section for Industrial Power Generation Application

Lorenzo Arcangeli, Antonio Aquilino, Filippo Brazzini, Lorenzo Cosi, Nicola Maceli, Sara Rizzi
Proc. ASME. GT2024, Volume 9: Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications; Steam Turbine, V009T20A017, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128909
https://doi.org/10.1115/GT2024-128909
View Paper titled, Development of a Low-Pressure Section for Industrial Power Generation Application
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Topics: Energy generation, Exhaust systems, Pressure, Steam turbines
Proceedings Papers

Transient Thermo-Structural Analysis of a Throttle Valve Operated With sCO2

Cosimo Bianchini, Davide Bertini, Simone Sandrin, Vanessa Mariotti, Nicola Maceli, Lorenzo Arcangeli
Proc. ASME. GT2024, Volume 11: Supercritical CO2, V011T28A038, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129030
https://doi.org/10.1115/GT2024-129030
View Paper titled, Transient Thermo-Structural Analysis of a Throttle Valve Operated With sCO2
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Topics: Transients (Dynamics), Valves, Flow (Dynamics), Steady state, Carbon dioxide, Computational fluid dynamics, Design, Finite element analysis, Heat transfer, Metals
Proceedings Papers

Development of a Novel Steam Turbine Low Pressure Section for Variable Speed Application

Jury Auciello, Nicola Maceli, Lorenzo Arcangeli, Lorenzo Cosi
Proc. ASME. GT2023, Volume 10: Steam Turbine, V010T20A021, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103762
https://doi.org/10.1115/GT2023-103762
View Paper titled, Development of a Novel Steam Turbine Low Pressure Section for Variable Speed Application
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Topics: Pressure, Steam turbines, Design, Turbines, Aerodynamics, Annulus, Energy generation, Flow (Dynamics), Manufacturing, Mechanical drives
Proceedings Papers

Comparing Different Designs of a Grid-Valve for Industrial Steam Turbines

Cosimo Bianchini, Riccardo Da Soghe, Lorenzo Giannini, Nicola Maceli, Lorenzo Arcangeli, Vanessa Mariotti
Proc. ASME. GT2023, Volume 10: Steam Turbine, V010T20A025, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103952
https://doi.org/10.1115/GT2023-103952
View Paper titled, Comparing Different Designs of a Grid-Valve for Industrial Steam Turbines
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Topics: Steam turbines, Valves, Energy generation, Flow (Dynamics), Architecture, Carbon footprint, Computational fluid dynamics, Design, Pressure, Renewable energy sources
Proceedings Papers

Simulating Part-Span Snubber in Low Pressure Steam Turbine Rotor With Simplified Methods for Aerodynamic and Aeromechanical Assessment

Filippo Mariotti, Leonardo Lilli, Lorenzo Pinelli, Lorenzo Arcangeli, Nicola Maceli, Filippo Brazzini, Michele Marconcini, Andrea Arnone
Proc. ASME. GT2023, Volume 10: Steam Turbine, V010T20A018, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103510
https://doi.org/10.1115/GT2023-103510
View Paper titled, Simulating Part-Span Snubber in Low Pressure Steam Turbine Rotor With Simplified Methods for Aerodynamic and Aeromechanical Assessment
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Topics: Blades, Flutter (Aerodynamics), Pressure, Rotors, Steam turbines
Proceedings Papers

A Strategy for the Design of ORC Multi-Stage Axial Turbines for Geothermal Energy Conversion

Marco Manfredi, Giacomo Persico, Vincenzo Dossena, Lorenzo Cosi, Annalisa Forte, Lorenzo Arcangeli
Proc. ASME. GT2023, Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, V13BT30A042, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104116
https://doi.org/10.1115/GT2023-104116
View Paper titled, A Strategy for the Design of ORC Multi-Stage Axial Turbines for Geothermal Energy Conversion
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Topics: Design, Geothermal power, Modeling, Organic Rankine cycle, Turbines
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82405
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
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Topics: Blades, Flow (Dynamics), Flutter (Aerodynamics), Rotors, Steam turbines, Stress, Vibration
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82896
https://doi.org/10.1115/GT2022-82896
View Paper titled, CFD Analysis of the Forces on a Steam Turbine Balance Seal Packing Ring
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Topics: Computational fluid dynamics, Packings (Cushioning), Steam turbines
Journal Articles

Nonlinear Vibration Analysis of Turbine Bladed Disks With Midspan Dampers

Erhan Ferhatoglu, Stefano Zucca, Daniele Botto, Jury Auciello, Lorenzo Arcangeli
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2022, 144(4): 041021.
Paper No: GTP-21-1567
https://doi.org/10.1115/1.4053107
Published Online: February 21, 2022
View Article titled, Nonlinear Vibration Analysis of Turbine Bladed Disks With Midspan Dampers
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Topics: Blades, Dampers, Disks, Friction, Stress, Resonance, Nonlinear vibration, Turbines, Vibration
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59268
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
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Topics: Computational fluid dynamics, Design, Exhaust systems, Modeling, Optimization, Steam turbines, Geometry, Diffusers, Engineering simulation, Flow (Dynamics)
Proceedings Papers

Two Phase Flow CFD Modeling of a Steam Turbine Low Pressure Section: Comparison With Data and Correlations

Nicola Maceli, Lorenzo Arcangeli, Andrea Arnone
Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T22A016, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59645
https://doi.org/10.1115/GT2021-59645
View Paper titled, Two Phase Flow CFD Modeling of a Steam Turbine Low Pressure Section: Comparison With Data and Correlations
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Topics: Computational fluid dynamics, Modeling, Pressure, Steam turbines, Two-phase flow
Proceedings Papers

Nonlinear Vibration Analysis of Turbine Bladed Disks With Mid-Span Dampers

Erhan Ferhatoglu, Stefano Zucca, Daniele Botto, Jury Auciello, Lorenzo Arcangeli
Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T30A020, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14942
https://doi.org/10.1115/GT2020-14942
View Paper titled, Nonlinear Vibration Analysis of Turbine Bladed Disks With Mid-Span Dampers
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Topics: Dampers, Disks, Friction, Nonlinear vibration, Turbines, Vibration, Design, Blades, Damping, Airfoils
Proceedings Papers

Numerical Investigation on the Aerodynamic Performance of a Low-Pressure Steam Turbine Exhaust Hood Using DOE Analysis

Tommaso Diurno, Tommaso Fondelli, Leonardo Nettis, Nicola Maceli, Lorenzo Arcangeli, Antonio Andreini, Bruno Facchini
Proc. ASME. GT2020, Volume 9: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Steam Turbine, V009T23A023, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15993
https://doi.org/10.1115/GT2020-15993
View Paper titled, Numerical Investigation on the Aerodynamic Performance of a Low-Pressure Steam Turbine Exhaust Hood Using DOE Analysis
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Topics: Exhaust systems, Pressure, Steam turbines, Flow (Dynamics), Turbines, Design, Diffusers, Rotors, Simulation, Computational fluid dynamics
Proceedings Papers

Two Phase Flow CFD Modeling to Enhance Steam Turbines LP Stages Performance Predictability: Comparison With Data and Correlations

Nicola Maceli, Lorenzo Arcangeli, Andrea Arnone
Proc. ASME. GT2020, Volume 9: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Steam Turbine, V009T23A029, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-16312
https://doi.org/10.1115/GT2020-16312
View Paper titled, Two Phase Flow CFD Modeling to Enhance Steam Turbines LP Stages Performance Predictability: Comparison With Data and Correlations
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Topics: Computational fluid dynamics, Modeling, Steam turbines, Two-phase flow
Journal Articles

Numerical Investigation on the Aerodynamic Performance of a Low-Pressure Steam Turbine Exhaust Hood Using Design of Experiment Analysis

Tommaso Diurno, Tommaso Fondelli, Leonardo Nettis, Nicola Maceli, Lorenzo Arcangeli, Antonio Andreini, Bruno Facchini
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2020, 142(11): 111006.
Paper No: GTP-20-1450
https://doi.org/10.1115/1.4048567
Published Online: October 20, 2020
View Article titled, Numerical Investigation on the Aerodynamic Performance of a Low-Pressure Steam Turbine Exhaust Hood Using Design of Experiment Analysis
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Topics: Diffusers, Exhaust systems, Flow (Dynamics), Geometry, Pressure, Rotors, Experimental design
Proceedings Papers

Numerical and Experimental Aerodynamic Investigation of a Low Pressure Steam Turbine Module

Juri Bellucci, Lorenzo Peruzzi, Andrea Arnone, Lorenzo Arcangeli, Nicola Maceli
Proc. ASME. GT2019, Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines, V008T29A024, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91279
https://doi.org/10.1115/GT2019-91279
View Paper titled, Numerical and Experimental Aerodynamic Investigation of a Low Pressure Steam Turbine Module
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Topics: Pressure, Steam turbines, Steam, Boundary-value problems, Computation, Computational fluid dynamics, Engineering simulation, Equilibrium (Physics), Flow (Dynamics), Geometry
Proceedings Papers

Experimental and Numerical Investigation of the Performance Impact of a Heavily Off-Design Inlet Swirl Angle in a Steam Turbine Stage

Berardo Paradiso, Giacomo Gatti, Alessandro Mora, Vincenzo Dossena, Lorenzo Arcangeli, Nicola Maceli, Juri Bellucci
Proc. ASME. GT2017, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T29A031, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-64561
https://doi.org/10.1115/GT2017-64561
View Paper titled, Experimental and Numerical Investigation of the Performance Impact of a Heavily Off-Design Inlet Swirl Angle in a Steam Turbine Stage
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Topics: Design, Steam turbines, Machinery, Blades, Computer simulation, Flanges, Probes, Boundary-value problems, Computational fluid dynamics, Entropy
Journal Articles

Numerical and Experimental Investigation of Axial Gap Variation in High-Pressure Steam Turbine Stages

Juri Bellucci, Filippo Rubechini, Andrea Arnone, Lorenzo Arcangeli, Nicola Maceli, Berardo Paradiso, Giacomo Gatti
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2017, 139(5): 052603.
Paper No: GTP-16-1390
https://doi.org/10.1115/1.4035158
Published Online: January 4, 2017
View Article titled, Numerical and Experimental Investigation of Axial Gap Variation in High-Pressure Steam Turbine Stages
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Topics: Blades, Flow (Dynamics), Pressure, Rotors, Turbines, Steam turbines, High pressure (Physics), Stators, Computational fluid dynamics
Journal Articles

An Experimental Study of the Aerodynamic Forcing Function in a 1.5 Steam Turbine Stage

Giacomo Gatti, Paolo Gaetani, Berardo Paradiso, Vincenzo Dossena, Juri Bellucci, Lorenzo Arcangeli, Nicola Maceli
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2017, 139(5): 052503.
Paper No: GTP-16-1355
https://doi.org/10.1115/1.4034967
Published Online: December 1, 2016
View Article titled, An Experimental Study of the Aerodynamic Forcing Function in a 1.5 Steam Turbine Stage
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Topics: Blades, Flow (Dynamics), Pressure, Rotors, Stators, Turbines, Steam turbines
Proceedings Papers

Numerical Aerodynamic Damping Evaluation of High-Pressure Steam Turbine Blades for Aeromechanical Characterization

Lorenzo Peruzzi, Juri Bellucci, Lorenzo Pinelli, Andrea Arnone, Lorenzo Arcangeli, Lorenzo Cosi, Marco Mazzucco
Proc. ASME. GT2016, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T26A012, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56378
https://doi.org/10.1115/GT2016-56378
View Paper titled, Numerical Aerodynamic Damping Evaluation of High-Pressure Steam Turbine Blades for Aeromechanical Characterization
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Topics: Blades, Damping, High pressure (Physics), Steam turbines, Flutter (Aerodynamics), Stability, Design, Geometry, Shapes