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Journal Articles

Ammonia as an Aircraft Fuel: A Critical Assessment From Airport to Wake

Marcel Otto, Ladislav Vesely, Jayanta Kapat, Michael Stoia, Nicholas D. Applegate, Gregory Natsui
Journal: ASME Open Journal of Engineering
Publisher: ASME
Article Type: Research Papers
ASME Open J. Engineering. January 2023, 2: 021033.
Paper No: AOJE-22-1055
https://doi.org/10.1115/1.4062626
Published Online: June 19, 2023
View Article titled, Ammonia as an Aircraft Fuel: A Critical Assessment From Airport to Wake
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Topics: Aircraft, Aviation, Emissions, Engines, Fuels, Hydrogen, Sustainable aviation fuels, Temperature, Turbines, Heat exchangers
Journal Articles

Performance Investigation of Supercritical CO 2 Brayton Cycles in Combination With Solar Power and Waste Heat Recovery Systems

Saad Alshahrani, Ladislav Vesely, Jayanta Kapat, C. Ahamed Saleel, Abraham Engeda
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. December 2022, 144(6): 061004.
Paper No: SOL-21-1336
https://doi.org/10.1115/1.4054663
Published Online: June 13, 2022
View Article titled, Performance Investigation of Supercritical CO 2 Brayton Cycles in Combination With Solar Power and Waste Heat Recovery Systems
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Topics: Cycles, Heat recovery, Brayton cycle, Supercritical carbon dioxide, Heat, Turbines
Journal Articles

Fluid-Thermal Topology Optimization of Gas Turbine Blade Internal Cooling Ducts

Shinjan Ghosh, Erik Fernandez, Jayanta Kapat
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. May 2022, 144(5): 051703.
Paper No: MD-21-1150
https://doi.org/10.1115/1.4053042
Published Online: December 6, 2021
View Article titled, Fluid-Thermal Topology Optimization of Gas Turbine Blade Internal Cooling Ducts
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Topics: Blades, Cooling, Ducts, Flow (Dynamics), Fluids, Gas turbines, Geometry, Optimization, Pressure drop, Shapes
Journal Articles

Heat Transfer in a Rib Turbulated Pin Fin Array for Trailing Edge Cooling

Marcel Otto, Jayanta Kapat, Mark Ricklick, Shantanu Mhetras
Journal: Journal of Thermal Science and Engineering Applications
Publisher: ASME
Article Type: Research Papers
J. Thermal Sci. Eng. Appl. April 2022, 14(4): 041012.
Paper No: TSEA-21-1067
https://doi.org/10.1115/1.4051766
Published Online: August 6, 2021
View Article titled, Heat Transfer in a Rib Turbulated Pin Fin Array for Trailing Edge Cooling
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Topics: Heat transfer, Pins (Engineering), Reynolds number, Flow (Dynamics), Cooling, Fins, Pressure drop
Proceedings Papers

IC6A1A6 vs. IC3A1 Squirrel Cage Induction Generator Cooling Configuration Challenges and Advantages for Wind Turbine Application

Gopal Singh, Ahmad Saleh, John Amos, Kalpathy Sundaram, Jayanta Kapat
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, V001T06A002, June 24–28, 2018
Publisher: American Society of Mechanical Engineers
Paper No: POWER2018-7159
https://doi.org/10.1115/POWER2018-7159
View Paper titled, IC6A1A6 vs. IC3A1 Squirrel Cage Induction Generator Cooling Configuration Challenges and Advantages for Wind Turbine Application
Open the PDF for IC6A1A6 vs. IC3A1 Squirrel Cage Induction Generator Cooling Configuration Challenges and Advantages for Wind Turbine Application in another window
Topics: Cooling, Electromagnetic induction, Generators, Wind turbines, Bearings, Temperature, Cooling systems, Design, Ducts, Heat
Proceedings Papers

Aero-Thermal Performance of a Rotor Blade Cascade With Film Cooling in Passage Endwall

Jinglun Fu, Jahed Hossain, Jayanta Kapat
Proc. ASME. GT2018, Volume 5A: Heat Transfer, V05AT12A018, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76899
https://doi.org/10.1115/GT2018-76899
View Paper titled, Aero-Thermal Performance of a Rotor Blade Cascade With Film Cooling in Passage Endwall
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Topics: Blades, Cascades (Fluid dynamics), Film cooling, Rotors, Computational fluid dynamics, Flow (Dynamics), Coolants, Cooling, Engineering simulation, Numerical analysis
Proceedings Papers

Thermal Analysis and Pressure Loss Modeling for an Optimized Heat Exchanger Used in a Recuperated CO 2 Power Cycle

Husam Zawati, Michael Elmore, Jayanta Kapat, Narasimha Nagaiah
Proc. ASME. GT2018, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A021, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76975
https://doi.org/10.1115/GT2018-76975
View Paper titled, Thermal Analysis and Pressure Loss Modeling for an Optimized Heat Exchanger Used in a Recuperated CO 2 Power Cycle
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Topics: Carbon dioxide, Heat exchangers, Modeling, Pressure, Thermal analysis, Thermodynamic power cycles, Cycles, Design, Density, Pressure drop
Proceedings Papers

High Pressure Ignition Delay Times Measurements and Comparison of the Performance of Several Oxy-Syngas Mechanisms Under High CO 2 Dilution

Samuel Barak, Erik Ninnemann, Sneha Neupane, Frank Barnes, Jayanta Kapat, Subith Vasu
Proc. ASME. GT2018, Volume 4A: Combustion, Fuels, and Emissions, V04AT04A020, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75407
https://doi.org/10.1115/GT2018-75407
View Paper titled, High Pressure Ignition Delay Times Measurements and Comparison of the Performance of Several Oxy-Syngas Mechanisms Under High CO 2 Dilution
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Topics: Carbon dioxide, High pressure (Physics), Ignition delay, Syngas, Combustion, Temperature, Diluents, Ignition, Modeling, Probes
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

Effect of Mixtures on Compressor and Cooler in Supercritical Carbon Dioxide Cycles

Ladislav Vesely, K. R. V. Manikantachari, Subith Vasu, Jayanta Kapat, Vaclav Dostal, Scott Martin
Proc. ASME. GT2018, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A010, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75568
https://doi.org/10.1115/GT2018-75568
View Paper titled, Effect of Mixtures on Compressor and Cooler in Supercritical Carbon Dioxide Cycles
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Topics: Compressors, Cycles, Supercritical carbon dioxide, Carbon dioxide, Fluids, Carbon capture and storage, Compression, Coolers, Design, Electricity (Physics)
Journal Articles

Flow and Heat Transfer Analysis in a Single Row Narrow Impingement Channel: Comparison of Particle Image Velocimetry, Large Eddy Simulation, and RANS to Identify RANS Limitations

Jahed Hossain, Erik Fernandez, Christian Garrett, Jayanta Kapat
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. March 2018, 140(3): 031010.
Paper No: TURBO-17-1215
https://doi.org/10.1115/1.4038711
Published Online: December 28, 2017
View Article titled, Flow and Heat Transfer Analysis in a Single Row Narrow Impingement Channel: Comparison of Particle Image Velocimetry, Large Eddy Simulation, and RANS to Identify RANS Limitations
Open the PDF for Flow and Heat Transfer Analysis in a Single Row Narrow Impingement Channel: Comparison of Particle Image Velocimetry, Large Eddy Simulation, and RANS to Identify RANS Limitations in another window
Topics: Flow (Dynamics), Heat transfer, Kinetic energy, Reynolds-averaged Navier–Stokes equations, Turbulence, Stress, Large eddy simulation, Particulate matter, Shear (Mechanics)
Proceedings Papers

Optimization of Supercritical CO 2 Brayton Cycle for Simple Cycle Gas Turbines Exhaust Heat Recovery Using Genetic Algorithm

Akshay Khadse, Lauren Blanchette, Jayanta Kapat, Subith Vasu, Kareem Ahmed
Proc. ASME. GT2017, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A013, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63696
https://doi.org/10.1115/GT2017-63696
View Paper titled, Optimization of Supercritical CO 2 Brayton Cycle for Simple Cycle Gas Turbines Exhaust Heat Recovery Using Genetic Algorithm
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Topics: Brayton cycle, Cycles, Exhaust systems, Gas turbines, Genetic algorithms, Heat recovery, Optimization, Supercritical carbon dioxide, Temperature, Flow (Dynamics)
Journal Articles

Effect of Target Wall Curvature on Heat Transfer and Pressure Loss From Jet Array Impingement

John Harrington, Jahed Hossain, Wenping Wang, Jayanta Kapat, Michael Maurer, Steven Thorpe
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. May 2017, 139(5): 051004.
Paper No: TURBO-16-1158
https://doi.org/10.1115/1.4035160
Published Online: January 24, 2017
View Article titled, Effect of Target Wall Curvature on Heat Transfer and Pressure Loss From Jet Array Impingement
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Topics: Flow (Dynamics), Heat transfer, Pressure, Reynolds number, Jets, Computational fluid dynamics
Proceedings Papers

Aeroelastic Impact of a Circumferentially Varying Tip Gap

David Canon, Jayanta Kapat
Proc. ASME. POWER2015, ASME 2015 Power Conference, V001T09A008, June 28–July 2, 2015
Publisher: American Society of Mechanical Engineers
Paper No: POWER2015-49565
https://doi.org/10.1115/POWER2015-49565
View Paper titled, Aeroelastic Impact of a Circumferentially Varying Tip Gap
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Topics: Aeroelasticity, Compressors, Computational fluid dynamics, Cycles, Engines, Excitation, Flow (Dynamics), Industrial gases, Leakage, Leakage flows
Proceedings Papers

Comprehensive Reduction of Thermal Resistance in Air Cooled Condensers

Ahmad Saleh, Jayanta Kapat
Proc. ASME. POWER2015, ASME 2015 Power Conference, V001T04A002, June 28–July 2, 2015
Publisher: American Society of Mechanical Engineers
Paper No: POWER2015-49363
https://doi.org/10.1115/POWER2015-49363
View Paper titled, Comprehensive Reduction of Thermal Resistance in Air Cooled Condensers
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Topics: Condensers (steam plant), Thermal resistance, Heat transfer, Cooling, Heat pipes, Steam, Water, Cooling systems, Design, Ducts
Proceedings Papers

Design and Real Fluid Modelling of Micro-Channel Recuperators for a Nominal 100 MW Class Recuperated Recompression Brayton Cycle Using Supercritical Carbon Dioxide

Joshua Schmitt, David Amos, Jayanta Kapat
Proc. ASME. GT2015, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T36A014, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43761
https://doi.org/10.1115/GT2015-43761
View Paper titled, Design and Real Fluid Modelling of Micro-Channel Recuperators for a Nominal 100 MW Class Recuperated Recompression Brayton Cycle Using Supercritical Carbon Dioxide
Open the PDF for Design and Real Fluid Modelling of Micro-Channel Recuperators for a Nominal 100 MW Class Recuperated Recompression Brayton Cycle Using Supercritical Carbon Dioxide in another window
Topics: Brayton cycle, Design, Fluids, Microchannels, Modeling, Supercritical carbon dioxide, Heat exchangers, Cycles, Flow (Dynamics), Temperature
Proceedings Papers

Effect of Target Wall Curvature on Heat Transfer and Pressure Loss From Jet Array Impingement

John Harrington, Arash Nayebzadeh, Jonathan Winn, Wenping Wang, Jayanta Kapat, Michael Maurer, Steven Thorpe
Proc. ASME. GT2015, Volume 5A: Heat Transfer, V05AT11A015, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42761
https://doi.org/10.1115/GT2015-42761
View Paper titled, Effect of Target Wall Curvature on Heat Transfer and Pressure Loss From Jet Array Impingement
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Topics: Heat transfer, Pressure, Computational fluid dynamics, Flow (Dynamics), Geometry, Paints, Reynolds number, Steady state, Temperature, Turbulence
Proceedings Papers

Pareto-Based Multi-Objective Optimization of Recuperated S-CO 2 Brayton Cycles

Mahmood Mohagheghi, Jayanta Kapat, Narasimha Nagaiah
Proc. ASME. GT2014, Volume 3B: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Supercritical CO2 Power Cycles; Wind Energy, V03BT36A018, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-27152
https://doi.org/10.1115/GT2014-27152
View Paper titled, Pareto-Based Multi-Objective Optimization of Recuperated S-CO 2 Brayton Cycles
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Topics: Brayton cycle, Pareto optimization, Supercritical carbon dioxide, Cycles, Optimization, Compressors, Temperature, Coolers, Flow (Dynamics), Fuels
Proceedings Papers

Thermodynamic Optimization of Recuperated S-CO2 Brayton Cycles for Solar Tower Applications

Mahmood Mohagheghi, Jayanta Kapat
Proc. ASME. GT2013, Volume 2: Aircraft Engine; Coal, Biomass and Alternative Fuels; Cycle Innovations, V002T07A013, June 3–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-94799
https://doi.org/10.1115/GT2013-94799
View Paper titled, Thermodynamic Optimization of Recuperated S-CO2 Brayton Cycles for Solar Tower Applications
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Topics: Brayton cycle, Genetic algorithms, Optimization, Solar energy, Supercritical carbon dioxide