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Journal Articles

Compressor Development for CO 2 -Based Pumped Thermal Energy Storage Systems

Timothy J. Held, Jason Miller, Kyle Sedlacko, Joshua Cameron, Scott Morris, Jeongseek Kang, Mark Turner
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2025, 147(9): 091014.
Paper No: GTP-24-1701
https://doi.org/10.1115/1.4067449
Published Online: January 29, 2025
View Article titled, Compressor Development for CO 2 -Based Pumped Thermal Energy Storage Systems
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Topics: Carbon dioxide, Compressors, Design, Pressure, Temperature, Reservoirs, Cycles
Journal Articles

Experimental Study of the Real Gas Effects of CO 2 on the Aerodynamic Performance Characteristics of a 1.5-Stage Axial Compressor

Jeongseek Kang, Alexander Vorobiev, Joshua D. Cameron, Scott C. Morris, Mark G. Turner, Kyle Sedlacko, Jason D. Miller, Timothy J. Held
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2025, 147(8): 081012.
Paper No: GTP-24-1719
https://doi.org/10.1115/1.4067267
Published Online: January 20, 2025
View Article titled, Experimental Study of the Real Gas Effects of CO 2 on the Aerodynamic Performance Characteristics of a 1.5-Stage Axial Compressor
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Topics: Carbon dioxide, Compressors, Pressure, Temperature, Reynolds number, Flow (Dynamics), Speed of sound
Proceedings Papers

Analysis of Pre-Stall Pressure Disturbances in an Axial Compressor

Valerie Hernley, Jeongseek Kang, Matthew Montgomery, Aleksandar Jemcov, Scott C. Morris
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT36A005, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-123043
https://doi.org/10.1115/GT2024-123043
View Paper titled, Analysis of Pre-Stall Pressure Disturbances in an Axial Compressor
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Topics: Compressors, Pressure
Proceedings Papers

Experimental Study of the Real Gas Effects of CO 2 on the Aerodynamic Performance Characteristics of a 1.5-Stage Axial Compressor

Jeongseek Kang, Alex Vorobiev, Joshua D. Cameron, Scott C. Morris, Mark G. Turner, Kyle Sedlacko, Jason D. Miller, Timothy J. Held
Proc. ASME. GT2024, Volume 11: Supercritical CO2, V011T28A052, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129572
https://doi.org/10.1115/GT2024-129572
View Paper titled, Experimental Study of the Real Gas Effects of CO 2 on the Aerodynamic Performance Characteristics of a 1.5-Stage Axial Compressor
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Topics: Carbon dioxide, Compressors, Performance characterization, Reynolds number
Proceedings Papers

Compressor Development for CO 2 -Based Pumped Thermal Energy Storage (PTES) Systems

Timothy J. Held, Jason Miller, Kyle Sedlacko, Joshua Cameron, Scott Morris, Jeongseek Kang, Mark Turner
Proc. ASME. GT2024, Volume 11: Supercritical CO2, V011T28A013, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124070
https://doi.org/10.1115/GT2024-124070
View Paper titled, Compressor Development for CO 2 -Based Pumped Thermal Energy Storage (PTES) Systems
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Topics: Carbon dioxide, Compressors, Thermal energy storage, Cycles, Design, Conceptual design, Pressure, Reservoirs, Engines, Fluid density
Proceedings Papers

Numerical and Experimental Comparison of a Single Stage Axial sCO 2 Compressor

Saugat Ghimire, Justin Holder, Matthew Ha, Mark Turner, Jeongseek Kang, Scott C. Morris, Kyle Sedlacko, Timothy J. Held
Proc. ASME. GT2024, Volume 11: Supercritical CO2, V011T28A041, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129128
https://doi.org/10.1115/GT2024-129128
View Paper titled, Numerical and Experimental Comparison of a Single Stage Axial sCO 2 Compressor
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Topics: Compressors
Journal Articles

Identification of Compressor Vibration Aerodynamic Forcing Mechanisms by Spectral Characteristics

Valerie Hernley, Jeongseek Kang, Matthew Montgomery, Jae Hoon Chung, Aleksandar Jemcov, Scott C. Morris
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2024, 146(5): 051008.
Paper No: GTP-23-1426
https://doi.org/10.1115/1.4063685
Published Online: December 11, 2023
View Article titled, Identification of Compressor Vibration Aerodynamic Forcing Mechanisms by Spectral Characteristics
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Topics: Blades, Compressors, Pressure, Vibration, Damping, Rotors, Flutter (Aerodynamics)
Proceedings Papers

Identification of Compressor Vibration Aerodynamic Forcing Mechanisms by Spectral Characteristics

Valerie Hernley, Jeongseek Kang, Matthew Montgomery, Jae Hoon Chung, Aleksandar Jemcov, Scott C. Morris
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT21A002, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101059
https://doi.org/10.1115/GT2023-101059
View Paper titled, Identification of Compressor Vibration Aerodynamic Forcing Mechanisms by Spectral Characteristics
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Topics: Compressors, Damping, Flutter (Aerodynamics), Vibration
Proceedings Papers

Experimental Study on Flutter Stability of Transonic Cooled Turbine Blade Stage With 3-Dimensional Mode Shape Excitation

Jeongseek Kang, Ethan Perez, Alex Vorobiev, Scott Morris, Joshua Cameron, Daehyun Kim, Hongsik Im, Matthew Montgomery
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A021, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15723
https://doi.org/10.1115/GT2020-15723
View Paper titled, Experimental Study on Flutter Stability of Transonic Cooled Turbine Blade Stage With 3-Dimensional Mode Shape Excitation
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Topics: Damping, Excitation, Flutter (Aerodynamics), Mode shapes, Stability, Turbine blades
Proceedings Papers

Rig Testing of the Operability of a Transonic Compressor Blade of an Industrial Gas Turbine

Hyunsu Kang, Sungjong Ahn, Kyusic Hwang, Justin Bock, Jeongseek Kang, Matthew Montgomery
Proc. ASME. GT2019, Volume 7A: Structures and Dynamics, V07AT36A016, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91468
https://doi.org/10.1115/GT2019-91468
View Paper titled, Rig Testing of the Operability of a Transonic Compressor Blade of an Industrial Gas Turbine
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Topics: Blades, Compressors, Flow-induced vibrations, Flutter (Aerodynamics), Industrial gases, Testing, Turbines