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Journal Articles

Extended Testing of the Auto-Ignition Characteristics of Hydrogen-Natural Gas Mixtures for the Safety of Power Plants

Accepted Manuscript
Christopher Loving, Garrett Mastantuono, Ramees K. Rahman, Gihun Kim, Subith Vasu, Travis Pigon, Angel Hernandez, Scott Cloyd
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power.
Paper No: GTP-24-1388
https://doi.org/10.1115/1.4066702
Published Online: September 28, 2024
View Article titled, Extended Testing of the Auto-Ignition Characteristics of Hydrogen-Natural Gas Mixtures for the Safety of Power Plants
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Topics: Hydrogen, Ignition, Power stations, Safety, Testing, Fuels, Carbon, Gas turbines, Natural gas, Temperature
Proceedings Papers

Micro-PIV Investigation of Near-Critical and Liquid CO 2 Conditions Inside a T-Channel Setup

Ritesh Ghorpade, Gihun Kim, Soroush Niazi, Yoav Peles, Subith Vasu
Proc. ASME. GT2024, Volume 11: Supercritical CO2, V011T28A006, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122370
https://doi.org/10.1115/GT2024-122370
View Paper titled, Micro-PIV Investigation of Near-Critical and Liquid CO 2 Conditions Inside a T-Channel Setup
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Topics: Carbon dioxide, Particle image velocimetry, Supercritical carbon dioxide
Journal Articles

An Optimized and Reduced Chemical Kinetic Model for Hydrogen and Natural Gas Blends Combustion in Industrial Gas Turbines

Accepted Manuscript
Ramees K. Rahman, Raghu Kancherla, Gregory Vogel, Subith Vasu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power.
Paper No: GTP-24-1353
https://doi.org/10.1115/1.4066241
Published Online: August 19, 2024
View Article titled, An Optimized and Reduced Chemical Kinetic Model for Hydrogen and Natural Gas Blends Combustion in Industrial Gas Turbines
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Topics: Combustion, Hydrogen, Industrial gases, Natural gas, Turbines, Fuels, Energy generation, Errors, Gas turbines, Carbon
Journal Articles

Development of Detailed and Reduced Chemical Kinetic Models for Ammonia Gas Turbines

Accepted Manuscript
Ramees K. Rahman, Michael Pierro, Mark Winquist, Ganesan Subbaraman, Dr. Wenting Sun, Robert Steele, John Vega, Subith Vasu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power.
Paper No: GTP-24-1352
https://doi.org/10.1115/1.4066240
Published Online: August 19, 2024
View Article titled, Development of Detailed and Reduced Chemical Kinetic Models for Ammonia Gas Turbines
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Topics: Gas turbines, Hydrogen, Combustion, Emissions, Fuels, Carbon, Combustion chambers, Energy generation, Errors, Nitrogen oxides
Journal Articles

An Experimental Investigation of Supercritical Methane Injection Characteristics in a CO 2 Environment

Ritesh Ghorpade, Gihun Kim, K. R. V. Manikantachari (Raghu), Joshua Weiner, Daniel T. Banuti, Subith Vasu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2023, 145(3): 031018.
Paper No: GTP-22-1280
https://doi.org/10.1115/1.4055632
Published Online: December 8, 2022
View Article titled, An Experimental Investigation of Supercritical Methane Injection Characteristics in a CO 2 Environment
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Topics: Carbon dioxide, Density, Fluids, Methane, Pressure, Temperature, Supercritical carbon dioxide
Journal Articles

Experimental Ignition Delay Time Measurements and Chemical Kinetics Modeling of Hydrogen/Ammonia/Natural Gas Fuels

Jessica B. Baker, Ramees K. Rahman, Michael Pierro, Jacklyn Higgs, Justin Urso, Cory Kinney, Subith Vasu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2023, 145(4): 041002.
Paper No: GTP-22-1321
https://doi.org/10.1115/1.4055721
Published Online: December 8, 2022
View Article titled, Experimental Ignition Delay Time Measurements and Chemical Kinetics Modeling of Hydrogen/Ammonia/Natural Gas Fuels
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Topics: Hydrogen, Ignition delay, Natural gas, Oxidation, Shock tubes, Fuels, High temperature, Combustion, Temperature
Proceedings Papers

Autoignition Delay Time Measurements and Chemical Kinetic Modeling of Hydrogen/Ammonia/Natural Gas Mixtures

Jessica B. Baker, Ramees K. Rahman, Michael Pierro, Jacklyn Higgs, Justin Urso, Cory Kinney, Subith Vasu
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T03A008, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81004
https://doi.org/10.1115/GT2022-81004
View Paper titled, Autoignition Delay Time Measurements and Chemical Kinetic Modeling of Hydrogen/Ammonia/Natural Gas Mixtures
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Topics: Delays, Hydrogen, Ignition delay, Modeling, Natural gas, Shock tubes
Proceedings Papers

An Experimental Study of Supercritical Methane Injection Characteristics in a CO 2 Environment

Ritesh Ghorpade, Gihun Kim, K. R. V. Manikantachari (Raghu), Joshua Weiner, Daniel T. Banuti, Subith Vasu
Proc. ASME. GT2022, Volume 9: Supercritical CO2, V009T28A003, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80881
https://doi.org/10.1115/GT2022-80881
View Paper titled, An Experimental Study of Supercritical Methane Injection Characteristics in a CO 2 Environment
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Topics: Carbon dioxide, Methane, Supercritical carbon dioxide
Journal Articles

Shock Tube and Flame Speed Measurements of 2,4,4-Trimethyl-1-Pentene: A Co-Optima Biofuel

Andrew R. Laich, Gihun Kim, Erik Ninnemann, Bader Almansour, Subith Vasu
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research Papers
J. Energy Resour. Technol. November 2022, 144(11): 112308.
Paper No: JERT-22-1098
https://doi.org/10.1115/1.4054403
Published Online: May 13, 2022
View Article titled, Shock Tube and Flame Speed Measurements of 2,4,4-Trimethyl-1-Pentene: A Co-Optima Biofuel
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Topics: Biofuel, Combustion, Fuels, Shock tubes, Flames, Pressure, Temperature, Ignition delay, Sensitivity analysis, Chemistry
Journal Articles

Ignition Delay Times of Oxy-Syngas and Oxy-Methane in Supercritical CO 2 Mixtures for Direct-Fired Cycles

Samuel Barak, Owen Pryor, Erik Ninnemann, Sneha Neupane, Subith Vasu, Xijia Lu, Brock Forrest
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2020, 142(2): 021014.
Paper No: GTP-19-1233
https://doi.org/10.1115/1.4045743
Published Online: January 16, 2020
View Article titled, Ignition Delay Times of Oxy-Syngas and Oxy-Methane in Supercritical CO 2 Mixtures for Direct-Fired Cycles
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Topics: Carbon dioxide, Ignition delay, Methane, Pressure, Syngas, Temperature, Shock tubes, Fuels, Cycles, Supercritical carbon dioxide
Journal Articles

A General Study of Counterflow Diffusion Flames for Supercritical CO 2 Combustion

K. R. V. Manikantachari, Scott Martin, Ramees K. Rahman, Carlos Velez, Subith Vasu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2019, 141(12): 121020.
Paper No: GTP-19-1538
https://doi.org/10.1115/1.4045195
Published Online: November 19, 2019
View Article titled, A General Study of Counterflow Diffusion Flames for Supercritical CO 2 Combustion
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Topics: Carbon dioxide, Combustion, Diffusion flames, Flames, Modeling, Pressure, Prandtl number, Energy dissipation, Scalars, Temperature
Proceedings Papers

CO Time-Histories During Oxy-Methane Combustion in a CO 2 Environment

Owen M. Pryor, Erik Ninnemann, Subith Vasu
Proc. ASME. GT2019, Volume 3: Coal, Biomass, Hydrogen, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T03A023, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-92086
https://doi.org/10.1115/GT2019-92086
View Paper titled, CO Time-Histories During Oxy-Methane Combustion in a CO 2 Environment
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Topics: Carbon dioxide, Combustion, Methane, Carbon, Ignition delay, Temperature, Wavelength, Absorption spectroscopy, Emissions, Lasers
Proceedings Papers

A General Study of Counterflow Diffusion Flames for Supercritical CO2 Mixtures

K. R. V. Manikantachari, Scott Martin, Ramees K. Rahman, Carlos Velez, Subith Vasu
Proc. ASME. GT2019, Volume 4A: Combustion, Fuels, and Emissions, V04AT04A021, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90332
https://doi.org/10.1115/GT2019-90332
View Paper titled, A General Study of Counterflow Diffusion Flames for Supercritical CO2 Mixtures
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Topics: Diffusion flames, Supercritical carbon dioxide, Carbon dioxide, Flames, Combustion, Prandtl number, Pressure, Chemistry, Flow (Dynamics), Accounting
Proceedings Papers

Techno-Economic Evaluation of the Effect of Impurities on the Performance of Supercritical CO 2 Cycles

Ladislav Vesely, Vaclav Dostal, Jayanta Kapat, Subith Vasu, Scott Martin
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A014, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90704
https://doi.org/10.1115/GT2019-90704
View Paper titled, Techno-Economic Evaluation of the Effect of Impurities on the Performance of Supercritical CO 2 Cycles
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Topics: Cycles, Supercritical carbon dioxide, Thermodynamic power cycles, Heat exchangers, Carbon capture and storage, Emissions, Energy generation, Fluids, Heat, Power stations
Proceedings Papers

Ignition Delay Times of Syngas and Methane in sCO2 Diluted Mixtures for Direct-Fired Cycles

Samuel Barak, Owen Pryor, Erik Ninnemann, Sneha Neupane, Xijia Lu, Brock Forrest, Subith Vasu
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A001, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90178
https://doi.org/10.1115/GT2019-90178
View Paper titled, Ignition Delay Times of Syngas and Methane in sCO2 Diluted Mixtures for Direct-Fired Cycles
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Topics: Cycles, Ignition delay, Methane, Syngas, Carbon dioxide, Fuels, Combustion, Computers, Pressure, Shock (Mechanics)
Proceedings Papers

A Reduced Kinetic Mechanism for Oxy/Methane sCO 2 Combustor Simulations

K. R. V. Manikantachari, Ladislav Vesely, Scott Martin, Jose O. Bobren-Diaz, Subith Vasu
Proc. ASME. POWER2018, Volume 1: Fuels, Combustion, and Material Handling; Combustion Turbines Combined Cycles; Boilers and Heat Recovery Steam Generators; Virtual Plant and Cyber-Physical Systems; Plant Development and Construction; Renewable Energy Systems, V001T01A009, June 24–28, 2018
Publisher: American Society of Mechanical Engineers
Paper No: POWER2018-7341
https://doi.org/10.1115/POWER2018-7341
View Paper titled, A Reduced Kinetic Mechanism for Oxy/Methane sCO 2 Combustor Simulations
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Topics: Combustion chambers, Engineering simulation, Methane, Simulation, Ignition delay, Carbon dioxide, Computational fluid dynamics, Chemistry, Design, Equations of state
Journal Articles

High-Pressure Oxy-Syngas Ignition Delay Times With CO 2 Dilution: Shock Tube Measurements and Comparison of the Performance of Kinetic Mechanisms

Samuel Barak, Erik Ninnemann, Sneha Neupane, Frank Barnes, Jayanta Kapat, Subith Vasu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2019, 141(2): 021011.
Paper No: GTP-18-1438
https://doi.org/10.1115/1.4040904
Published Online: September 26, 2018
View Article titled, High-Pressure Oxy-Syngas Ignition Delay Times With CO 2 Dilution: Shock Tube Measurements and Comparison of the Performance of Kinetic Mechanisms
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Topics: Carbon dioxide, Ignition delay, Syngas, Shock tubes, Pressure, High pressure (Physics)
Proceedings Papers

A Strategy of Reactant Mixing in Methane Direct-Fired sCO 2 Combustors

K. R. V. Manikantachari, Scott Martin, Ladislav Vesely, Jose O. Bobren-Diaz, Subith Vasu, Jayanta Kapat
Proc. ASME. GT2018, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A008, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75547
https://doi.org/10.1115/GT2018-75547
View Paper titled, A Strategy of Reactant Mixing in Methane Direct-Fired sCO 2 Combustors
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Topics: Combustion chambers, Methane, Combustion, Design, Energy generation, Thermodynamic power cycles, Carbon dioxide, Chemical kinetics, Cycles, Equations of state
Proceedings Papers

A Strategy of Mixture Preparation for Methane Direct-Fired sCO 2 Combustors

K. R. V. Manikantachari, Scott Martin, Ladislav Vesely, Jose O. Bobren-Diaz, Subith Vasu, Jayanta Kapat
Proc. ASME. GT2018, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A009, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75557
https://doi.org/10.1115/GT2018-75557
View Paper titled, A Strategy of Mixture Preparation for Methane Direct-Fired sCO 2 Combustors
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Topics: Combustion chambers, Methane, Carbon dioxide, Combustion, Design, Emissions, Equations of state, Exhaust systems, Flow (Dynamics)
Proceedings Papers

Thermal Stability Analysis of Gevo Jet Fuel Using Ellipsometry

Leigh Nash, Jennifer Klettlinger, Subith Vasu
Proc. ASME. GT2018, Volume 3: Coal, Biomass, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T03A005, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76209
https://doi.org/10.1115/GT2018-76209
View Paper titled, Thermal Stability Analysis of Gevo Jet Fuel Using Ellipsometry
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Topics: Jet fuels, Thermal stability, Fuels, Aluminum, ASTM International, Aviation, Combustion, Coolants, Engines, Ethanol