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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
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

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
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

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 Articletitled, 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 Articletitled, 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 Articletitled, 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

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
Proceedings Papers

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

Natalie R. Smith, Christopher Clarke, Timothy C. Allison, Michael Cave, Jason C. Wilkes
Proc. ASME. GT2018, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T27A029, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-77016
https://doi.org/10.1115/GT2018-77016
View Paper titled, The Comparison of Aerodynamic Performance Data Acquired From Thermal Measurements and a Torquemeter on a Compressor Impeller
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Topics: Compressor impellers, Torquemeters, Heat, Heat losses, Steady state, Torque, Enthalpy, Impellers, Machinery, Measurement uncertainty
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

Acoustically Induced Vibration Mitigations in Compressor Piping Systems

Timothy C. Allison, Jeffrey Bennett
Proc. ASME. GT2016, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T24A023, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-57800
https://doi.org/10.1115/GT2016-57800
View Paper titled, Acoustically Induced Vibration Mitigations in Compressor Piping Systems
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Topics: Acoustics, Compressors, Piping systems, Vibration, Pipes, Stress, Valves, Pressure, Safety, Physics
Journal Articles

Testing and Modeling of an Acoustic Instability in Pilot-Operated Pressure Relief Valves

Timothy C. Allison, Klaus Brun
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2016, 138(5): 052401.
Paper No: GTP-15-1279
https://doi.org/10.1115/1.4031623
Published Online: November 3, 2015
View Articletitled, Testing and Modeling of an Acoustic Instability in Pilot-Operated Pressure Relief Valves
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Topics: Acoustics, Flow (Dynamics), Modeling, Pipes, Pistons, Pressure, Relief valves, Testing, Valves, Chatter
Proceedings Papers

Testing and Modeling of an Acoustic Instability in Pilot-Operated Pressure Relief Valves

Timothy C. Allison, Klaus Brun
Proc. ASME. GT2015, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T24A016, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43797
https://doi.org/10.1115/GT2015-43797
View Paper titled, Testing and Modeling of an Acoustic Instability in Pilot-Operated Pressure Relief Valves
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Topics: Acoustics, Modeling, Relief valves, Testing, Valves, Failure, Oscillations, Pipes, Piping systems, Chatter
Proceedings Papers

Effects of Stator Flow Distortion on Rotating Blade Endurance: Part 2—Stress Analysis and Failure Criteria

Harold Simmons, Vishwas Iyengar, Timothy C. Allison
Proc. ASME. GT2012, Volume 6: Oil and Gas Applications; Concentrating Solar Power Plants; Steam Turbines; Wind Energy, 213-223, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-70013
https://doi.org/10.1115/GT2012-70013
View Paper titled, Effects of Stator Flow Distortion on Rotating Blade Endurance: Part 2—Stress Analysis and Failure Criteria
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Topics: Failure, Flow (Dynamics), Rotating blades, Stators, Stress analysis (Engineering), Stress, Blades, Excitation, High cycle fatigue, Resonance
Proceedings Papers

Revisiting the SAFE Diagram for Analysis of Mistuned Bladed Disks

Timothy C. Allison, J. Jeffrey Moore, Andrew H. Lerche, Harold R. Simmons
Proc. ASME. GT2012, Volume 6: Oil and Gas Applications; Concentrating Solar Power Plants; Steam Turbines; Wind Energy, 141-153, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-69014
https://doi.org/10.1115/GT2012-69014
View Paper titled, Revisiting the SAFE Diagram for Analysis of Mistuned Bladed Disks
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Topics: Disks, Blades, Excitation, Design, Failure, Finite element analysis, Flow (Dynamics), Mode shapes, Stress