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Proceedings Papers

Capital and Operational Cost Estimations for a Net-Zero Carbon Emissions Microgrid Application

Fernando Karg Bulnes, Joshua M. Schmitt, Natalie R. Smith, George N. Khawly, Timothy C. Allison, Aaron McClung
Proc. ASME. GT2023, Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, V006T09A003, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101553
https://doi.org/10.1115/GT2023-101553
View Paper titled, Capital and Operational Cost Estimations for a Net-Zero Carbon Emissions Microgrid Application
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Topics: Carbon, Emissions, Microgrids, Carbon capture and storage, Design, Fossil fuels, Energy / power systems, Energy generation, Energy storage, Governments
Proceedings Papers

Technoeconomic Comparison of sCO2 and ORC Systems for Waste Heat Recovery

Timothy C. Allison, Jason C. Wilkes, Karl Wygant, Robert Pelton
Proc. ASME. GT2022, Volume 9: Supercritical CO2, V009T28A029, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83434
https://doi.org/10.1115/GT2022-83434
View Paper titled, Technoeconomic Comparison of sCO2 and ORC Systems for Waste Heat Recovery
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Topics: Heat recovery, Organic Rankine cycle, Supercritical carbon dioxide, Thermodynamic power cycles
Journal Articles

Thermal-Hydraulic Safety Assessment of Full-Scale ESBWR Nuclear Reactor Design

S. P. Saraswat, D. Ray, G. Mishra, D. Yadav, V. S. Bhadouria, P. Munshi, C. Allison
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. July 2022, 8(3): 031403.
Paper No: NERS-21-1073
https://doi.org/10.1115/1.4052014
Published Online: May 26, 2022
View Article titled, Thermal-Hydraulic Safety Assessment of Full-Scale ESBWR Nuclear Reactor Design
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Topics: Accidents, Boiling water reactors, Containment, Design, Pressure, Safety, Steam, Water, Heat, Economics
Proceedings Papers

Implementation of Solar Salt as Fluid in ASYST4.1 and Validation for a Natural Circulation Loop

A. K. Trivedi, D. R. Novog, C. Allison
Proc. ASME. ICONE28, Volume 2: Nuclear Fuels, Research, and Fuel Cycle; Nuclear Codes and Standards; Thermal-Hydraulics, V002T07A022, August 4–6, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ICONE28-64703
https://doi.org/10.1115/ICONE28-64703
View Paper titled, Implementation of Solar Salt as Fluid in ASYST4.1 and Validation for a Natural Circulation Loop
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Topics: Fluids, Solar energy, Thermal hydraulics
Proceedings Papers

Design of a Cooled sCO2 Combustion Test Rig for Steady-State Kinetics Testing

Kelsi M. Katcher, Timothy C. Allison, Michael Marshall, Yuin Jin, Chansun Lim, Sungho Chang
Proc. ASME. GT2021, Volume 10: Supercritical CO2, V010T30A002, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-04122
https://doi.org/10.1115/GT2021-04122
View Paper titled, Design of a Cooled sCO2 Combustion Test Rig for Steady-State Kinetics Testing
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Topics: Combustion, Design, Steady state, Testing, Temperature, Cycles, Flow (Dynamics), Carbon capture and storage, Chemical kinetics, Circuits
Proceedings Papers

An Update on the Status of a Reduced Flow Test of a 10mw 700°C sCO2 Integrally Geared Compander

Kelsi M. Katcher, Jason Wilkes, Tim C. Allison
Proc. ASME. GT2021, Volume 10: Supercritical CO2, V010T30A001, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-02604
https://doi.org/10.1115/GT2021-02604
View Paper titled, An Update on the Status of a Reduced Flow Test of a 10mw 700°C sCO2 Integrally Geared Compander
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Topics: Flow (Dynamics), Cycles, Design, Turbines, Compressors, Machinery, Supercritical carbon dioxide, Temperature, Testing, Thermodynamic power cycles
Proceedings Papers

Power and Compression Analysis of Power-To-Gas Implementations in Natural Gas Pipelines With Up to 100% Hydrogen Concentration

Timothy C. Allison, John Klaerner, Stefan Cich, Rainer Kurz, Marybeth McBain
Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T20A011, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59398
https://doi.org/10.1115/GT2021-59398
View Paper titled, Power and Compression Analysis of Power-To-Gas Implementations in Natural Gas Pipelines With Up to 100% Hydrogen Concentration
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Topics: Compression, Energy storage, Hydrogen, Methane, Natural gas distribution, Pipelines
Proceedings Papers

On Small Scale LNG Concepts

Rainer Kurz, Min Ji, Griffin Beck, Timothy C. Allison
Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T20A006, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58989
https://doi.org/10.1115/GT2021-58989
View Paper titled, On Small Scale LNG Concepts
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Topics: Liquefied natural gas, Cycles, Compressors, Preferences, Brayton cycle, Compression, Economics , Equipment performance, Gas turbines, Optimization
Journal Articles

Nonhyperbolicity of Conservation Equations of RELAP5 Two-Fluid Model in Nuclear Reactor Safety Results (Investigation and Eigenvalue Analysis)

S. P. Saraswat, P. Munshi, C. Allison
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. January 2021, 7(1): 011402.
Paper No: NERS-19-1022
https://doi.org/10.1115/1.4047161
Published Online: October 2, 2020
View Article titled, Nonhyperbolicity of Conservation Equations of RELAP5 Two-Fluid Model in Nuclear Reactor Safety Results (Investigation and Eigenvalue Analysis)
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Topics: Accidents, Boiling water reactors, Eigenvalues, Fluids, Porosity, Pressure, Pressurized water reactors, Light water reactors, Water, Stability
Proceedings Papers

Igniter Testing for sCO2 Oxy-Combustion

Kelsi M. Katcher, Timothy C. Allison, Shane Coogan, Yuin Jin, Chansun Lim, Sungho Chang
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A017, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90899
https://doi.org/10.1115/GT2019-90899
View Paper titled, Igniter Testing for sCO2 Oxy-Combustion
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Topics: Combustion, Testing, Ignition, Lasers, Carbon dioxide, Ignition systems, Combustion chambers, Natural gas, Uncertainty, Carbon capture and storage
Proceedings Papers

Measurements of End Cap Temperatures in a Multistage Barrel-Style Centrifugal Compressor

Natalie R. Smith, Jason C. Wilkes, Jonathan Wade, Timothy C. Allison, Meera Day Towler, J. Jeffrey Moore, Ian Weinberg, Michael McCune
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T27A026, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91798
https://doi.org/10.1115/GT2019-91798
View Paper titled, Measurements of End Cap Temperatures in a Multistage Barrel-Style Centrifugal Compressor
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Topics: Compressors, Temperature, Gas compressors, Fluids, Leakage, Risk, Seals, Temperature distribution
Proceedings Papers

Limiting Inlet Conditions for Phase Change Avoidance in Supercritical CO 2 Compressors

Timothy C. Allison, Aaron McClung
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A007, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90409
https://doi.org/10.1115/GT2019-90409
View Paper titled, Limiting Inlet Conditions for Phase Change Avoidance in Supercritical CO 2 Compressors
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Topics: Compressors, Supercritical carbon dioxide, Mach number, Temperature, Cycles, Design, Pressure, Cavitation, Condensation, Fluids
Journal Articles

Analysis of Loss of Heat Sink for ITER Divertor Cooling System Using Modified RELAP/SCDAPSIM/MOD 4.0

S. P. Saraswat, D. Ray, P. Munshi, C. Allison
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. October 2019, 5(4): 042202.
Paper No: NERS-18-1030
https://doi.org/10.1115/1.4042707
Published Online: July 19, 2019
View Article titled, Analysis of Loss of Heat Sink for ITER Divertor Cooling System Using Modified RELAP/SCDAPSIM/MOD 4.0
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Topics: Accidents, Coolants, Cooling systems, Design, Heat, Heat sinks, Modeling, Plasmas (Ionized gases), Pressure, Sprays
Journal Articles

Planning for Successful Transients and Trips in a 1 MW e -Scale High-Temperature sCO 2 Test Loop

Timothy C. Allison, J. Jeffrey Moore, Doug Hofer, Meera Day Towler, Joseph Thorp
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2019, 141(6): 061014.
Paper No: GTP-18-1622
https://doi.org/10.1115/1.4041921
Published Online: February 19, 2019
View Article titled, Planning for Successful Transients and Trips in a 1 MW e -Scale High-Temperature sCO 2 Test Loop
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Topics: Design, Flow (Dynamics), High temperature, Pressure, Temperature, Transients (Dynamics), Turbines, Pumps, Failure mechanisms, Pipes
Journal Articles

Experimental Validation of a Wide-Range Centrifugal Compressor Stage for Supercritical CO 2 Power Cycles

Timothy C. Allison, Natalie R. Smith, Robert Pelton, Jason C. Wilkes, Sewoong Jung
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2019, 141(6): 061011.
Paper No: GTP-18-1621
https://doi.org/10.1115/1.4041920
Published Online: February 18, 2019
View Article titled, Experimental Validation of a Wide-Range Centrifugal Compressor Stage for Supercritical CO 2 Power Cycles
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Topics: Compressors, Computational fluid dynamics, Design, Flow (Dynamics), Impellers, Thermodynamic power cycles, Diffusers, Temperature, Supercritical carbon dioxide
Journal Articles

The Comparison of Aerodynamic Performance Data Acquired From Thermal Measurements and a Torquemeter on a Compressor Impeller

Natalie R. Smith, Timothy C. Allison, Jason C. Wilkes, Christopher Clarke, Michael Cave
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2019, 141(4): 041011.
Paper No: GTP-18-1623
https://doi.org/10.1115/1.4041740
Published Online: November 16, 2018
View Article titled, The Comparison of Aerodynamic Performance Data Acquired From Thermal Measurements and a Torquemeter on a Compressor Impeller
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Topics: Flow (Dynamics), Heat, Heat losses, Impellers, Temperature, Torque, Torquemeters, Enthalpy, Steady state, Measurement uncertainty
Proceedings Papers

Modeling and Mitigation of Acoustic Induced Vibration (AIV) in Piping Systems

Brandon L. Ridens, Timothy C. Allison, Sarah B. Simons, Klaus Brun
Proc. ASME. PVP2018, Volume 7: Operations, Applications, and Components, V007T07A009, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: PVP2018-84107
https://doi.org/10.1115/PVP2018-84107
View Paper titled, Modeling and Mitigation of Acoustic Induced Vibration (AIV) in Piping Systems
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Topics: Acoustics, Modeling, Piping systems, Vibration, Computational fluid dynamics, Pipes, Pressure, Testing, Accelerometers, Engineering simulation
Proceedings Papers

QUENCH-06 Experiment Post-Test Calculations and Integrated Uncertainty Analysis With RELAP/SCDAPSIM/MOD3.4 and MOD3.5

C. Allison, B. T. Le, G. Gerova, I. Spasov, M. Perez-Ferragut, J. Hohorst
Proc. ASME. ICONE26, Volume 4: Nuclear Safety, Security, and Cyber Security; Computer Code Verification and Validation, V004T15A012, July 22–26, 2018
Publisher: American Society of Mechanical Engineers
Paper No: ICONE26-81912
https://doi.org/10.1115/ICONE26-81912
View Paper titled, QUENCH-06 Experiment Post-Test Calculations and Integrated Uncertainty Analysis With RELAP/SCDAPSIM/MOD3.4 and MOD3.5
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Topics: Uncertainty analysis, Modeling, Heat losses, Internships, Uncertainty, Computer software, Contact resistance, Convection, Experimental analysis, Fuel rods
Proceedings Papers

Experimental Validation of a Wide-Range Centrifugal Compressor Stage for Supercritical CO 2 Power Cycles

Timothy C. Allison, Natalie R. Smith, Robert Pelton, Sewoong Jung, Jason C. Wilkes
Proc. ASME. GT2018, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A023, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-77026
https://doi.org/10.1115/GT2018-77026
View Paper titled, Experimental Validation of a Wide-Range Centrifugal Compressor Stage for Supercritical CO 2 Power Cycles
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Topics: Compressors, Supercritical carbon dioxide, Thermodynamic power cycles, Design, Flow (Dynamics), Carbon dioxide, Cycles, Impellers, Transients (Dynamics), Computational fluid dynamics
Proceedings Papers

Planning for Successful Transients and Trips in a 1 MW e -Scale High-Temperature sCO 2 Test Loop

Timothy C. Allison, J. Jeffrey Moore, Doug Hofer, Meera Day Towler, Joseph Thorp
Proc. ASME. GT2018, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A013, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75873
https://doi.org/10.1115/GT2018-75873
View Paper titled, Planning for Successful Transients and Trips in a 1 MW e -Scale High-Temperature sCO 2 Test Loop
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Topics: High temperature, Transients (Dynamics), Design, Failure, Supercritical carbon dioxide, Temperature, Turbomachinery, Centrifugal pumps, Control systems, Cycles