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Journal Articles

Guidelines for the Aerodynamic Design of sCO 2 Centrifugal Compressor Stages

Alessandro Romei, Paolo Gaetani, Giacomo Persico
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2023, 145(11): 111014.
Paper No: GTP-23-1310
https://doi.org/10.1115/1.4063311
Published Online: September 29, 2023
View Article titled, Guidelines for the Aerodynamic Design of sCO 2 Centrifugal Compressor Stages
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Topics: Blades, Compressors, Design, Flow (Dynamics), Impellers, Two-phase flow, Fluids, Optimization, Shapes
Proceedings Papers

Guidelines for the Aerodynamic Design of sCO 2 Centrifugal Compressor Stages

Alessandro Romei, Paolo Gaetani, Giacomo Persico
Proc. ASME. GT2023, Volume 12: Supercritical CO2, V012T28A010, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102106
https://doi.org/10.1115/GT2023-102106
View Paper titled, Guidelines for the Aerodynamic Design of sCO 2 Centrifugal Compressor Stages
Open the PDF for Guidelines for the Aerodynamic Design of sCO 2 Centrifugal Compressor Stages in another window
Topics: Compressors, Design, Flow (Dynamics), Carbon dioxide, Optimization, Shapes, Aerodynamics, Compressibility, Density, Engineering design processes
Proceedings Papers

Computational and Experimental Assessment of a MW-Scale Supercritical CO 2 Compressor Operating in Multiple Near-Critical Conditions

Lorenzo Toni, Ernani Fulvio Bellobuono, Roberto Valente, Alessandro Romei, Paolo Gaetani, Giacomo Persico
Proc. ASME. GT2022, Volume 9: Supercritical CO2, V009T28A021, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83171
https://doi.org/10.1115/GT2022-83171
View Paper titled, Computational and Experimental Assessment of a MW-Scale Supercritical CO 2 Compressor Operating in Multiple Near-Critical Conditions
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Topics: Compressors, Speed of sound, Supercritical carbon dioxide
Journal Articles

Computational and Experimental Assessment of a MW-Scale Supercritical CO 2 Compressor Operating in Multiple Near-Critical Conditions

Lorenzo Toni, Ernani Fulvio Bellobuono, Roberto Valente, Alessandro Romei, Paolo Gaetani, Giacomo Persico
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2022, 144(10): 101015.
Paper No: GTP-22-1268
https://doi.org/10.1115/1.4055364
Published Online: September 12, 2022
View Article titled, Computational and Experimental Assessment of a MW-Scale Supercritical CO 2 Compressor Operating in Multiple Near-Critical Conditions
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Topics: Compressors, Flow (Dynamics), Pressure, Speed of sound, Temperature, Simulation, Two-phase flow, Equilibrium (Physics)
Proceedings Papers

On sCO 2 Compressor Performance Maps at Variable Intake Thermodynamic Conditions

Alessandro Romei, Paolo Gaetani, Giacomo Persico
Proc. ASME. GT2021, Volume 10: Supercritical CO2, V010T30A028, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60252
https://doi.org/10.1115/GT2021-60252
View Paper titled, On sCO 2 Compressor Performance Maps at Variable Intake Thermodynamic Conditions
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Topics: Compressors, Flow (Dynamics), Carbon dioxide, Compressibility, Mach number, Blades, Design, Engineering simulation, Fluids, Simulation
Journal Articles

Implications of Phase Change on the Aerodynamics of Centrifugal Compressors for Supercritical Carbon Dioxide Applications

Giacomo Persico, Paolo Gaetani, Alessandro Romei, Lorenzo Toni, Ernani Fulvio Bellobuono, Roberto Valente
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2021, 143(4): 041007.
Paper No: GTP-20-1744
https://doi.org/10.1115/1.4049924
Published Online: February 24, 2021
View Article titled, Implications of Phase Change on the Aerodynamics of Centrifugal Compressors for Supercritical Carbon Dioxide Applications
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Topics: Compressors, Flow (Dynamics), Aerodynamics
Proceedings Papers

Implications of Phase Change on the Aerodynamics of Centrifugal Compressors for Supercritical Carbon Dioxide Applications

Giacomo Persico, Lorenzo Toni, Paolo Gaetani, Ernani Fulvio Bellobuono, Alessandro Romei, Roberto Valente
Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T31A010, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14988
https://doi.org/10.1115/GT2020-14988
View Paper titled, Implications of Phase Change on the Aerodynamics of Centrifugal Compressors for Supercritical Carbon Dioxide Applications
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Topics: Aerodynamics, Carbon dioxide, Compressors, Supercritical carbon dioxide
Journal Articles

Amplification of Operational Uncertainty Induced by Nonideal Flows in Supersonic Turbine Cascades

Alessandro Romei, Davide Vimercati, Alberto Guardone, Giacomo Persico
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2020, 142(8): 081006.
Paper No: GTP-19-1764
https://doi.org/10.1115/1.4047770
Published Online: July 31, 2020
View Article titled, Amplification of Operational Uncertainty Induced by Nonideal Flows in Supersonic Turbine Cascades
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Topics: Cascades (Fluid dynamics), Flow (Dynamics), Pressure, Turbines, Uncertainty, Temperature, Fluids, Cycles, Rotors, Shock (Mechanics)
Journal Articles

The Role of Turbomachinery Performance in the Optimization of Supercritical Carbon Dioxide Power Systems

Alessandro Romei, Paolo Gaetani, Andrea Giostri, Giacomo Persico
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2020, 142(7): 071001.
Paper No: TURBO-19-1283
https://doi.org/10.1115/1.4046182
Published Online: June 11, 2020
View Article titled, The Role of Turbomachinery Performance in the Optimization of Supercritical Carbon Dioxide Power Systems
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Topics: Compressors, Cycles, Pressure, Turbines, Turbomachinery, Design, Optimization, Power systems (Machinery), Flow (Dynamics)
Proceedings Papers

The Role of Turbomachinery Performance in the Optimization of Supercritical Carbon Dioxide Power Systems

Alessandro Romei, Paolo Gaetani, Andrea Giostri, Giacomo Persico
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A020, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91189
https://doi.org/10.1115/GT2019-91189
View Paper titled, The Role of Turbomachinery Performance in the Optimization of Supercritical Carbon Dioxide Power Systems
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Topics: Optimization, Power systems (Machinery), Supercritical carbon dioxide, Turbomachinery, Cycles, Compressors, Pressure, Machinery, Accounting, Compression
Journal Articles

High-Fidelity Shape Optimization of Non-Conventional Turbomachinery by Surrogate Evolutionary Strategies

Giacomo Persico, Pablo Rodriguez-Fernandez, Alessandro Romei
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. August 2019, 141(8): 081010.
Paper No: TURBO-17-1220
https://doi.org/10.1115/1.4043252
Published Online: April 2, 2019
View Article titled, High-Fidelity Shape Optimization of Non-Conventional Turbomachinery by Surrogate Evolutionary Strategies
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Topics: Blades, Cascades (Fluid dynamics), Computational fluid dynamics, Design, Flow (Dynamics), Optimization, Turbomachinery, Shape optimization, Pressure, Turbines
Journal Articles

Assessment of Deterministic Shape Optimizations Within a Stochastic Framework for Supersonic Organic Rankine Cycle Nozzle Cascades

Alessandro Romei, Pietro Marco Congedo, Giacomo Persico
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2019, 141(7): 071019.
Paper No: GTP-18-1509
https://doi.org/10.1115/1.4042925
Published Online: March 13, 2019
View Article titled, Assessment of Deterministic Shape Optimizations Within a Stochastic Framework for Supersonic Organic Rankine Cycle Nozzle Cascades
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Topics: Blades, Cascades (Fluid dynamics), Flow (Dynamics), Optimization, Pressure, Uncertainty, Uncertainty quantification, Nozzles, Design, Organic Rankine cycle
Proceedings Papers

Novel Shape Parametrization Technique Applied to the Optimization of a Supersonic ORC Turbine Cascade

Alessandro Romei, Giacomo Persico
Proc. ASME. GT2018, Volume 2D: Turbomachinery, V02DT46A021, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76732
https://doi.org/10.1115/GT2018-76732
View Paper titled, Novel Shape Parametrization Technique Applied to the Optimization of a Supersonic ORC Turbine Cascade
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Topics: Cascades (Fluid dynamics), Optimization, Organic Rankine cycle, Shapes, Turbines, Design, Performance, B-splines, Chain, Computational fluid dynamics