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Proceedings Papers

Magnetic Bearings for High-Temperature sCO 2 Pumped Heat Energy Storage

Aaron Rimpel, Natalie Smith, Tim Allison, Andrea Masala
Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T07A006, September 21–25, 2020
Paper No: GT2020-15747
DOI: https://doi.org/10.1115/GT2020-15747
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Topics: Energy storage, Heat, High temperature, Magnetic bearings, Cycles, Machinery, Bearings, Temperature, Leakage, Compressors
Proceedings Papers

A Novel Approach to Surge Control: High-Frequency Pressure Variance As an Indicator of Impending Surge in Centrifugal Compressors

Meera Day Towler, Tim Allison, Paul Krueger, Karl Wygant
Proc. ASME. GT2018, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T27A030, June 11–15, 2018
Paper No: GT2018-77222
DOI: https://doi.org/10.1115/GT2018-77222
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Topics: Compressors, Pressure, Surges, Pipes, Testing, Diffusers, Filtration, Pressure measurement, Pressure transducers, Signals
Journal Articles

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

Robert Pelton, Sewoong Jung, Tim Allison, Natalie Smith
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2018, 140(9): 092602.
Paper No: GTP-17-1452
DOI: https://doi.org/10.1115/1.4039835
Published Online: May 24, 2018
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Topics: Compressors, Design, Flow (Dynamics), Impellers, Cycles, Supercritical carbon dioxide, Thermodynamic power cycles, Temperature
Proceedings Papers

Design of a Wide-Range Centrifugal Compressor Stage for Supercritical CO2 Power Cycles

Robert Pelton, Tim Allison, Sewoong Jung, Natalie Smith
Proc. ASME. GT2017, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A031, June 26–30, 2017
Paper No: GT2017-65172
DOI: https://doi.org/10.1115/GT2017-65172
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Topics: Compressors, Design, Supercritical carbon dioxide, Thermodynamic power cycles, Cycles, Impellers, Temperature, Transients (Dynamics), Blades, Compressor impellers
Proceedings Papers

Analysis of Historical Dry Gas Seal Failure Data

Meera Day, Tim Allison
Proc. ASME. GT2016, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T24A015, June 13–17, 2016
Paper No: GT2016-57076
DOI: https://doi.org/10.1115/GT2016-57076
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Topics: Compression, Databases, Design, Downtime, Failure, Failure analysis, Failure data, Maintenance, Reliability, Separation (Technology)
Proceedings Papers

A General Model for Two-Point Contact Dry-Friction Whip and Whirl: Further Advancements and Experimental Test Results

Jason C. Wilkes, Tim Allison
Proc. ASME. GT2015, Volume 7A: Structures and Dynamics, V07AT31A024, June 15–19, 2015
Paper No: GT2015-43815
DOI: https://doi.org/10.1115/GT2015-43815
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Topics: Dry-friction whip and whirl, Rotors, Air bearings, Bushings, Failure, Magnetic bearings, Stators, Whirls