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Proceedings Papers

Integration Options for Nuclear Steam Cycle Using Liquid Air Energy Storage

Jin Young Heo, Won Woong Lee, Jung Hwan Park, Jeong Ik Lee
Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T07A002, September 21–25, 2020
Paper No: GT2020-14880
DOI: https://doi.org/10.1115/GT2020-14880
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Topics: Cycles, Energy storage, Nuclear power stations, Steam
Journal Articles

Impact of Turbomachinery Degradation on Performance and Dynamic Behavior of Supercritical CO 2 Cycle

Seongmin Son, Jeong Yeol Baek, Yongju Jeong, Jeong Ik Lee
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2020, 142(9): 091007.
Paper No: GTP-20-1146
DOI: https://doi.org/10.1115/1.4047888
Published Online: August 26, 2020
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Topics: Compressors, Cycles, Stress, Supercritical carbon dioxide, Turbines, Turbomachinery, Control equipment, Power systems (Machinery)
Proceedings Papers

Investigation of Magnetic Journal Bearing Instability Issues in Supercritical CO 2 Turbomachinery

Dokyu Kim, SeungJoon Baik, Jeong Ik Lee
Proc. ASME. AJKFluids2019, Volume 3B: Fluid Applications and Systems, V03BT03A075, July 28–August 1, 2019
Paper No: AJKFluids2019-5349
DOI: https://doi.org/10.1115/AJKFluids2019-5349
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Topics: Journal bearings, Magnetic bearings, Supercritical carbon dioxide, Turbomachinery
Proceedings Papers

A Comparison Study for Off-Design Performance Prediction of a Supercritical CO 2 Compressor With Similitude Analysis

Yongju Jeong, Seongmin Son, Seong kuk Cho, Seungjoon Baik, Jeong Ik Lee
Proc. ASME. AJKFluids2019, Volume 3A: Fluid Applications and Systems, V03AT03A031, July 28–August 1, 2019
Paper No: AJKFluids2019-5017
DOI: https://doi.org/10.1115/AJKFluids2019-5017
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Topics: Compressors, Design, Supercritical carbon dioxide, Thermodynamic power cycles
Proceedings Papers

RANS Simulation of a Radial Compressor With Supercritical CO 2 Fluid for External Loss Model Development

Seong Gu Kim, Seong Kuk Cho, Jeong Ik Lee, Jekyoung Lee, Si Woo Lee, Yacine Addad, Jae Eun Cha
Proc. ASME. GT2018, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A020, June 11–15, 2018
Paper No: GT2018-76943
DOI: https://doi.org/10.1115/GT2018-76943
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Topics: Compressors, Fluids, Model development, Reynolds-averaged Navier–Stokes equations, Simulation, Supercritical carbon dioxide, Computational fluid dynamics, Condensation, Design, Energy budget (Physics)
Proceedings Papers

Evaluation of the Optimal Point Variation of the S-CO 2 Cycle While Considering Internal Pinch in Recuperator

Seongmin Son, Jin Young Heo, Jeong Ik Lee
Proc. ASME. GT2018, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A006, June 11–15, 2018
Paper No: GT2018-75196
DOI: https://doi.org/10.1115/GT2018-75196
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Topics: Cycles, Pinch effect, Supercritical carbon dioxide, Thermodynamic power cycles, Carbon dioxide, Compression, Specific heat, Boundary-value problems, Brayton cycle, Coal
Proceedings Papers

Experimental and Numerical Study of Critical Flow Model Development for Supercritical CO 2 Power Cycle Application

Min Seok Kim, Bong Seong Oh, Hwa-Young Jung, Seong Jun Bae, Jeong Ik Lee
Proc. ASME. GT2018, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A015, June 11–15, 2018
Paper No: GT2018-75934
DOI: https://doi.org/10.1115/GT2018-75934
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Topics: Flow (Dynamics), Model development, Supercritical carbon dioxide, Thermodynamic power cycles, Compressibility, Cycles, Density, Fluids, Geometry, Leakage flows
Proceedings Papers

Preliminary Study of Supercritical CO 2 Mixed With Gases for Power Cycle in Warm Environments

Seungjoon Baik, Jeong Ik Lee
Proc. ASME. GT2018, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A017, June 11–15, 2018
Paper No: GT2018-76386
DOI: https://doi.org/10.1115/GT2018-76386
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Topics: Gases, Supercritical carbon dioxide, Thermodynamic power cycles, Temperature, Carbon dioxide, Waste heat, Air flow, Brayton cycle, Compressibility, Compression
Journal Articles

A Study of Supercritical Carbon Dioxide Power Cycle for Concentrating Solar Power Applications Using an Isothermal Compressor

Jin Young Heo, Jinsu Kwon, Jeong Ik Lee
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2018, 140(7): 071702.
Paper No: GTP-17-1448
DOI: https://doi.org/10.1115/1.4038476
Published Online: April 10, 2018
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Topics: Compression, Compressors, Cycles, Supercritical carbon dioxide, Brayton cycle, Design, Thermodynamic power cycles, Cooling, Thermal efficiency, Temperature
Journal Articles

The Effect of Real Gas Approximations on S-CO 2 Compressor Design

Jekyoung Lee, Seong Kuk Cho, Jeong Ik Lee
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. May 2018, 140(5): 051007.
Paper No: TURBO-17-1208
DOI: https://doi.org/10.1115/1.4038879
Published Online: April 6, 2018
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Topics: Approximation, Compressors, Design, Supercritical carbon dioxide, Errors
Proceedings Papers

A Study of s-CO2 Power Cycle for CSP Applications Using an Isothermal Compressor

Jin Young Heo, Yoonhan Ahn, Jeong Ik Lee
Proc. ASME. GT2017, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A009, June 26–30, 2017
Paper No: GT2017-63322
DOI: https://doi.org/10.1115/GT2017-63322
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Topics: Compressors, Supercritical carbon dioxide, Thermodynamic power cycles, Cycles, Compression, Brayton cycle, Temperature, Thermal efficiency, Concentrating solar power, Cooling
Proceedings Papers

Transient Simulation of Critical Flow With Thermal-Hydraulic System Analysis Code for Supercritical CO 2 Applications

Min Seok Kim, Bong Seong Oh, Jin Su Kwon, Hwa-Young Jung, Jeong Ik Lee
Proc. ASME. GT2017, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A010, June 26–30, 2017
Paper No: GT2017-63549
DOI: https://doi.org/10.1115/GT2017-63549
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Topics: Flow (Dynamics), Simulation, Supercritical carbon dioxide, Systems analysis, Transients (Dynamics), Sodium fast reactors, Brayton cycle, Carbon dioxide, Leakage flows, Pressure
Proceedings Papers

Sensitivity Study of S-CO 2 Compressor Design for Different Real Gas Approximations

Jekyoung Lee, Seong Kuk Cho, Jae Eun Cha, Jeong Ik Lee
Proc. ASME. GT2016, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T36A010, June 13–17, 2016
Paper No: GT2016-57100
DOI: https://doi.org/10.1115/GT2016-57100
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Topics: Approximation, Compressors, Design, Supercritical carbon dioxide, Brayton cycle, Fluids, Specific heat, Technology development, Turbomachinery, Carbon dioxide
Proceedings Papers

S-CO 2 Turbine Design for Decay Heat Removal System of Sodium Cooled Fast Reactor

Seong Kuk Cho, Jekyoung Lee, Jeong Ik Lee, Jae Eun Cha
Proc. ASME. GT2016, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T36A006, June 13–17, 2016
Paper No: GT2016-56532
DOI: https://doi.org/10.1115/GT2016-56532
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Topics: Design, Heat, Sodium fast reactors, Supercritical carbon dioxide, Turbines, Design methodology, Nuclear reactors, Turbochargers, Brayton cycle, Compressors
Proceedings Papers

A Study of S-CO 2 Power Cycle for Waste Heat Recovery Using Isothermal Compressor

Jin Young Heo, Yoonhan Ahn, Jeong Ik Lee
Proc. ASME. GT2016, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T36A012, June 13–17, 2016
Paper No: GT2016-57151
DOI: https://doi.org/10.1115/GT2016-57151
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Topics: Compressors, Heat recovery, Supercritical carbon dioxide, Thermodynamic power cycles, Cycles, Waste heat, Brayton cycle, Compression, Economics , Energy / power systems
Proceedings Papers

Off Design Performance Map Similarity Study of Radial Type Turbomachinery in Supercritical CO 2 Brayton Cycle

Seong Kuk Cho, Jekyoung Lee, Jeong Ik Lee
Proc. ASME. AJKFluids2015, Volume 1: Symposia, V001T09A001, July 26–31, 2015
Paper No: AJKFluids2015-7903
DOI: https://doi.org/10.1115/AJKFluids2015-7903
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Topics: Brayton cycle, Design, Supercritical carbon dioxide, Turbomachinery, Compressors, Power conversion systems, Cycles, Design methodology, Engineering design processes, Engineering prototypes
Proceedings Papers

Investigation of the Bottoming Cycle for High Efficiency Combined Cycle Gas Turbine System With Supercritical Carbon Dioxide Power Cycle

Seong Kuk Cho, Minseok Kim, Seungjoon Baik, Yoonhan Ahn, Jeong Ik Lee
Proc. ASME. GT2015, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T36A011, June 15–19, 2015
Paper No: GT2015-43077
DOI: https://doi.org/10.1115/GT2015-43077
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Topics: Combined cycle gas turbines, Cycles, Supercritical carbon dioxide, Thermodynamic power cycles, Steam, Temperature, Flow (Dynamics), Turbines, Brayton cycle, Cascades (Fluid dynamics)
Proceedings Papers

Comparison of Gas System Analysis Code GAMMA+ to S-CO 2 Compressor Test Data

Seong Jun Bae, Yoonhan Ahn, Hong-Sik Lim, Jae Eun Cha, Jeong Ik Lee
Proc. ASME. GT2015, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T36A012, June 15–19, 2015
Paper No: GT2015-43085
DOI: https://doi.org/10.1115/GT2015-43085
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Topics: Compressors, Supercritical carbon dioxide, Systems analysis, Carbon dioxide, Transient analysis, Brayton cycle, Transients (Dynamics), Water, Accidents, Cooling
Proceedings Papers

Preliminary Experimental Study of Precooler in Supercritical CO 2 Brayton Cycle

Seungjoon Baik, Seong Gu Kim, Seong Jun Bae, Yoonhan Ahn, Jekyoung Lee, Jeong Ik Lee
Proc. ASME. GT2015, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T36A010, June 15–19, 2015
Paper No: GT2015-42915
DOI: https://doi.org/10.1115/GT2015-42915
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Topics: Brayton cycle, Supercritical carbon dioxide, Cycles, Heat exchangers, Design, Energy conversion, Temperature, Thermal efficiency, Carbon dioxide, Circuits
Proceedings Papers

Hybrid System of Supercritical Carbon Dioxide Brayton Cycle and Carbon Dioxide Rankine Cycle Combined Fuel Cell

Seong Jun Bae, Yoonhan Ahn, Jekyoung Lee, Jeong Ik Lee
Proc. ASME. GT2014, Volume 3B: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Supercritical CO2 Power Cycles; Wind Energy, V03BT36A004, June 16–20, 2014
Paper No: GT2014-25238
DOI: https://doi.org/10.1115/GT2014-25238
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Topics: Brayton cycle, Carbon dioxide, Fuel cells, Rankine cycle, Supercritical carbon dioxide, Heat, Cycles, Thermal efficiency, Molten carbonate fuel cells, Flow (Dynamics)