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Proceedings Papers

Rotordynamic Force Coefficient Prediction of an Unshrouded Radial Inflow Expander and Labyrinth Seal Using Transient Computational Fluid Dynamic Analysis

Chris D. Kulhanek, Hector A. Delgado, Michael P. Marshall, J. Jeffrey Moore, Joseph Lillard, Yunbae Kim
Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT22A021, June 13–17, 2022
Paper No: GT2022-83257
DOI: https://doi.org/10.1115/GT2022-83257
View Paper titled, Rotordynamic Force Coefficient Prediction of an Unshrouded Radial Inflow Expander and Labyrinth Seal Using Transient Computational Fluid Dynamic Analysis
Click here to open pdf in another window PDF for Rotordynamic Force Coefficient Prediction of an Unshrouded Radial Inflow Expander and Labyrinth Seal Using Transient Computational Fluid Dynamic Analysis
Topics: Computational fluid dynamics, Inflow, Stiffness, Transients (Dynamics)
Proceedings Papers

Oxygen Storage Incorporated Into Net Power and the Allam-Fetvedt Oxy-Fuel sCO 2 Power Cycle – Technoeconomic Analysis

J. Jeffrey Moore, Owen Pryor, Ian Cormier, Jeremy Fetvedt
Proc. ASME. GT2022, Volume 9: Supercritical CO2, V009T28A010, June 13–17, 2022
Paper No: GT2022-82060
DOI: https://doi.org/10.1115/GT2022-82060
View Paper titled, Oxygen Storage Incorporated Into Net Power and the Allam-Fetvedt Oxy-Fuel sCO 2 Power Cycle – Technoeconomic Analysis
Click here to open pdf in another window PDF for Oxygen Storage Incorporated Into Net Power and the Allam-Fetvedt Oxy-Fuel sCO 2 Power Cycle – Technoeconomic Analysis
Topics: Energy storage, Fuels, Oxygen, Storage, Thermodynamic power cycles
Proceedings Papers

Aerodynamics of Scallop Seal Flows in Turbomachinery

Gocha Chochua, Wei Shyy, Jeffrey Moore
Proc. ASME. IMECE2001, Heat Transfer: Volume 5 — Computational, Aerospace and Environmental Heat Transfer, 269-277, November 11–16, 2001
Paper No: IMECE2001/HTD-24311
DOI: https://doi.org/10.1115/IMECE2001/HTD-24311
View Paper titled, Aerodynamics of Scallop Seal Flows in Turbomachinery
Click here to open pdf in another window PDF for Aerodynamics of Scallop Seal Flows in Turbomachinery
Topics: Aerodynamics, Flow (Dynamics), Turbomachinery, Physics, Turbulence, Accounting, Boundary-value problems, Compressible flow, Dampers, Design
Proceedings Papers

Effects of Scalloped Centrifugal Impellers on Aerodynamic and Rotordynamic Performance Using CFD Techniques

J. Jeffrey Moore
Proc. ASME. IMECE2000, Challenges and Goals in Industrial and Pipeline Compressors, 127-138, November 5–10, 2000
Paper No: IMECE2000-1679
DOI: https://doi.org/10.1115/IMECE2000-1679
View Paper titled, Effects of Scalloped Centrifugal Impellers on Aerodynamic and Rotordynamic Performance Using CFD Techniques
Click here to open pdf in another window PDF for Effects of Scalloped Centrifugal Impellers on Aerodynamic and Rotordynamic Performance Using CFD Techniques
Topics: Computational fluid dynamics, Impellers, Flow (Dynamics), Diffusers, Thrust, Blades, High cycle fatigue, Horsepower, Pressure, Shear stress
Proceedings Papers

Operation and Control of a Supercritical CO 2 Compressor

Joshua D. Neveu, Stefan D. Cich, J. Jeffrey Moore, Jason Mortzheim
Proc. ASME. GT2021, Volume 10: Supercritical CO2, V010T30A017, June 7–11, 2021
Paper No: GT2021-59359
DOI: https://doi.org/10.1115/GT2021-59359
View Paper titled, Operation and Control of a Supercritical CO 2 Compressor
Click here to open pdf in another window PDF for Operation and Control of a Supercritical CO 2 Compressor
Topics: Compressors, Control systems, Supercritical carbon dioxide
Proceedings Papers

Loop Transient Performance With a Closed Loop sCO2 Brayton Cycle

Stefan D. Cich, J. Jeffrey Moore, Meera Day Towler, Jason Mortzheim
Proc. ASME. GT2021, Volume 10: Supercritical CO2, V010T30A003, June 7–11, 2021
Paper No: GT2021-04135
DOI: https://doi.org/10.1115/GT2021-04135
View Paper titled, Loop Transient Performance With a Closed Loop sCO2 Brayton Cycle
Click here to open pdf in another window PDF for Loop Transient Performance With a Closed Loop sCO2 Brayton Cycle
Topics: Brayton cycle, Transients (Dynamics), High temperature, Testing, Turbines, Atmospheric pressure, Carbon dioxide, Cycles, Density, Emergencies
Proceedings Papers

Mechanical Design and Testing of a 2.5 MW sCO 2 Compressor Loop

Stefan D. Cich, J. Jeffrey Moore, Chris Kulhanek, Meera Day Towler, Jason Mortzheim
Proc. ASME. GT2021, Volume 10: Supercritical CO2, V010T30A004, June 7–11, 2021
Paper No: GT2021-04155
DOI: https://doi.org/10.1115/GT2021-04155
View Paper titled, Mechanical Design and Testing of a 2.5 MW sCO 2 Compressor Loop
Click here to open pdf in another window PDF for Mechanical Design and Testing of a 2.5 MW sCO 2 Compressor Loop
Topics: Compressors, Design engineering, Testing, Carbon dioxide, Design, Domes (Structural elements), Inlet guide vanes, Brayton cycle, Compression, Construction
Proceedings Papers

Development and Testing of a 10 MWe Supercritical CO2 Turbine in a 1 MWe Flow Loop

Jeffrey Moore, Stefan Cich, Meera Day-Towler, Jason Mortzheim
Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T31A018, September 21–25, 2020
Paper No: GT2020-15945
DOI: https://doi.org/10.1115/GT2020-15945
View Paper titled, Development and Testing of a 10 MWe Supercritical CO2 Turbine in a 1 MWe Flow Loop
Click here to open pdf in another window PDF for Development and Testing of a 10 MWe Supercritical CO2 Turbine in a 1 MWe Flow Loop
Topics: Flow (Dynamics), Supercritical carbon dioxide, Testing, Turbines, Cycles, Steam, Heat, Temperature, Thermal efficiency, Transients (Dynamics)
Proceedings Papers

Three-Dimensional CFD Rotordynamic Analysis of Gas Labyrinth Seals

J. Jeffrey Moore
Proc. ASME. IDETC-CIE2001, Volume 6A: 18th Biennial Conference on Mechanical Vibration and Noise, 791-800, September 9–12, 2001
Paper No: DETC2001/VIB-21394
DOI: https://doi.org/10.1115/DETC2001/VIB-21394
View Paper titled, Three-Dimensional CFD Rotordynamic Analysis of Gas Labyrinth Seals
Click here to open pdf in another window PDF for Three-Dimensional CFD Rotordynamic Analysis of Gas Labyrinth Seals
Topics: Computational fluid dynamics, Flow (Dynamics), Leakage, Shear stress, Cavities, Fluids, Geometry, High pressure (Physics), Internal flow, Machinery
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
Paper No: GT2019-91798
DOI: https://doi.org/10.1115/GT2019-91798
View Paper titled, Measurements of End Cap Temperatures in a Multistage Barrel-Style Centrifugal Compressor
Click here to open pdf in another window PDF for Measurements of End Cap Temperatures in a Multistage Barrel-Style Centrifugal Compressor
Topics: Compressors, Temperature, Gas compressors, Fluids, Leakage, Risk, Seals, Temperature distribution
Proceedings Papers

Loop Filling and Start Up With a Closed Loop sCO 2 Brayton Cycle

Stefan D. Cich, J. Jeffrey Moore, Meera Day Towler, Jason Mortzheim, Douglas Hofer
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A006, June 17–21, 2019
Paper No: GT2019-90393
DOI: https://doi.org/10.1115/GT2019-90393
View Paper titled, Loop Filling and Start Up With a Closed Loop sCO 2 Brayton Cycle
Click here to open pdf in another window PDF for Loop Filling and Start Up With a Closed Loop sCO 2 Brayton Cycle
Topics: Atmospheric pressure, Brayton cycle, Carbon dioxide, Cycles, Density, Emergencies, Ice, Mechanical testing, Testing, Transients (Dynamics)
Proceedings Papers

A Method for Rotordynamic Force Prediction of a Centrifugal Compressor Impeller Front Cavity Using a Transient Whirling CFD Technique

Kevin Hoopes, J. Jeffrey Moore, Aaron Rimpel, Chris Kulhanek, Balaji Venkataraman
Proc. ASME. GT2019, Volume 7A: Structures and Dynamics, V07AT33A011, June 17–21, 2019
Paper No: GT2019-91904
DOI: https://doi.org/10.1115/GT2019-91904
View Paper titled, A Method for Rotordynamic Force Prediction of a Centrifugal Compressor Impeller Front Cavity Using a Transient Whirling CFD Technique
Click here to open pdf in another window PDF for A Method for Rotordynamic Force Prediction of a Centrifugal Compressor Impeller Front Cavity Using a Transient Whirling CFD Technique
Topics: Cavities, Compressor impellers, Computational fluid dynamics, Transients (Dynamics), Whirls, Impellers, Modeling, Simulation, Stability
Proceedings Papers

Radial Inlet and Exit Design for a 10 MWe sCO 2 Axial Turbine

Stefan D. Cich, J. Jeffrey Moore, Michael Marshall, Kevin Hoopes, Jason Mortzheim, Douglas Hofer
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A005, June 17–21, 2019
Paper No: GT2019-90392
DOI: https://doi.org/10.1115/GT2019-90392
View Paper titled, Radial Inlet and Exit Design for a 10 MWe sCO 2 Axial Turbine
Click here to open pdf in another window PDF for Radial Inlet and Exit Design for a 10 MWe sCO 2 Axial Turbine
Topics: Design, Turbines, Power density, Cycles, Brayton cycle, Degrees of freedom, Engines, Flow (Dynamics), High temperature, Machinery
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
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2019, 141(6): 061014.
Paper No: GTP-18-1622
DOI: 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
Click here to open pdf in another window PDF for Planning for Successful Transients and Trips in a 1 MW e -Scale High-Temperature sCO 2 Test Loop
Topics: Design, Flow (Dynamics), High temperature, Pressure, Temperature, Transients (Dynamics), Turbines, Pumps, Failure mechanisms, Pipes
Journal Articles

An Advanced Surge Dynamic Model for Simulating Emergency Shutdown Events and Comparing Different Antisurge Strategies

Enrico Munari, Mirko Morini, Michele Pinelli, Klaus Brun, Sarah Simons, Rainer Kurz, Jeffrey Moore
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2019, 141(7): 071003.
Paper No: GTP-18-1592
DOI: https://doi.org/10.1115/1.4042167
Published Online: January 10, 2019
View Article titled, An Advanced Surge Dynamic Model for Simulating Emergency Shutdown Events and Comparing Different Antisurge Strategies
Click here to open pdf in another window PDF for An Advanced Surge Dynamic Model for Simulating Emergency Shutdown Events and Comparing Different Antisurge Strategies
Topics: Compressors, Pressure, Simulation, Surges, Valves, Recycling, Flow (Dynamics), Dynamic models, Circuits, Scram
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
Paper No: GT2018-75873
DOI: 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
Click here to open pdf in another window PDF for Planning for Successful Transients and Trips in a 1 MW e -Scale High-Temperature sCO 2 Test Loop
Topics: High temperature, Transients (Dynamics), Design, Failure, Supercritical carbon dioxide, Temperature, Turbomachinery, Centrifugal pumps, Control systems, Cycles
Proceedings Papers

An Advanced Surge Dynamic Model for Simulating ESD Events and Comparing Different Anti-Surge Strategies

Enrico Munari, Mirko Morini, Michele Pinelli, Klaus Brun, Sarah Simons, Rainer Kurz, Jeffrey Moore
Proc. ASME. GT2018, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T27A020, June 11–15, 2018
Paper No: GT2018-76179
DOI: https://doi.org/10.1115/GT2018-76179
View Paper titled, An Advanced Surge Dynamic Model for Simulating ESD Events and Comparing Different Anti-Surge Strategies
Click here to open pdf in another window PDF for An Advanced Surge Dynamic Model for Simulating ESD Events and Comparing Different Anti-Surge Strategies
Topics: Dynamic models, Surges, Compressors, Recycling, Valves, Circuits, Flow (Dynamics), Piping systems, Test facilities, Closed loop systems
Journal Articles

Dynamic Characterization of an Integral Squeeze Film Bearing Support Damper for a Supercritical Co 2 Expander

Bugra Ertas, Adolfo Delgado, Jeffrey Moore
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2018, 140(5): 052501.
Paper No: GTP-17-1261
DOI: https://doi.org/10.1115/1.4038121
Published Online: November 14, 2017
View Article titled, Dynamic Characterization of an Integral Squeeze Film Bearing Support Damper for a Supercritical Co 2 Expander
Click here to open pdf in another window PDF for Dynamic Characterization of an Integral Squeeze Film Bearing Support Damper for a Supercritical Co 2 Expander
Topics: Dampers, Damping, Vibration, Clearances (Engineering), Excitation, Bearings
Proceedings Papers

Dynamic Characterization of an Integral Squeeze Film Bearing Support Damper for a Supercritical CO 2 Expander

Bugra Ertas, Adolfo Delgado, Jeffrey Moore
Proc. ASME. GT2017, Volume 7A: Structures and Dynamics, V07AT34A009, June 26–30, 2017
Paper No: GT2017-63448
DOI: https://doi.org/10.1115/GT2017-63448
View Paper titled, Dynamic Characterization of an Integral Squeeze Film Bearing Support Damper for a Supercritical CO 2 Expander
Click here to open pdf in another window PDF for Dynamic Characterization of an Integral Squeeze Film Bearing Support Damper for a Supercritical CO 2 Expander
Topics: Bearings, Dampers, Supercritical carbon dioxide, Damping, Inertia (Mechanics), Stiffness, Cavitation, Testing, Accounting, Carbon dioxide
Proceedings Papers

Low-Leakage Shaft End Seals for Utility-Scale Supercritical CO 2 Turboexpanders

Rahul A. Bidkar, Edip Sevincer, Jifeng Wang, Azam M. Thatte, Andrew Mann, Maxwell Peter, Grant Musgrove, Timothy Allison, Jeffrey Moore
Proc. ASME. GT2016, Volume 5A: Heat Transfer, V05AT15A019, June 13–17, 2016
Paper No: GT2016-56979
DOI: https://doi.org/10.1115/GT2016-56979
View Paper titled, Low-Leakage Shaft End Seals for Utility-Scale Supercritical CO 2 Turboexpanders
Click here to open pdf in another window PDF for Low-Leakage Shaft End Seals for Utility-Scale Supercritical CO 2 Turboexpanders
Topics: Leakage, Supercritical carbon dioxide, Computational fluid dynamics, Turbines, Cycles, Thermodynamic power cycles, Coal, Finite element analysis, Fluids, Carbon dioxide