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Douglas Hofer
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Proceedings Papers

Economic Modeling of Renewable Integration and the Application of Energy Storage to the ERCOT Energy Grid

Fernando Karg Bulnes, Douglas Hofer, Natalie R. Smith, Joshua Schmitt, Owen Pryor, George Khawly, Aaron McClung
Proc. ASME. GT2024, Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, V006T08A003, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124292
https://doi.org/10.1115/GT2024-124292
View Paper titled, Economic Modeling of Renewable Integration and the Application of Energy Storage to the ERCOT Energy Grid
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Topics: Economics , Energy storage, Modeling, Power grids, Stress, Wind, Coal, Microgrids, Natural gas, Renewable energy
Proceedings Papers

Techno-Economic Analysis of Emerging Energy Storage Technologies for a Microgrid

Joshua Schmitt, Douglas Hofer, Owen Pryor, George Khawly, Fernando Karg Bulnes, Aaron McClung
Proc. ASME. GT2024, Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, V006T09A017, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129215
https://doi.org/10.1115/GT2024-129215
View Paper titled, Techno-Economic Analysis of Emerging Energy Storage Technologies for a Microgrid
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Topics: Economics , Energy storage, Microgrids, Storage, Carbon capture and storage, Energy generation, Generators, Batteries, Carbon neutrality, Cycles
Proceedings Papers

Transient Modeling of 10 MW Supercritical CO 2 Brayton Power Cycles Using Numerical Propulsion System Simulation (NPSS)

Ching-Jen Tang, Aaron McClung, Douglas Hofer, Megan Huang
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A024, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91443
https://doi.org/10.1115/GT2019-91443
View Paper titled, Transient Modeling of 10 MW Supercritical CO 2 Brayton Power Cycles Using Numerical Propulsion System Simulation (NPSS)
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Topics: Modeling, Propulsion systems, Simulation, Supercritical carbon dioxide, Thermodynamic power cycles, Transients (Dynamics), Turbines, Compressors, Carbon dioxide, Cycles
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90392
https://doi.org/10.1115/GT2019-90392
View Paper titled, Radial Inlet and Exit Design for a 10 MWe sCO 2 Axial Turbine
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Topics: Design, Turbines, Power density, Cycles, Brayton cycle, Degrees of freedom, Engines, Flow (Dynamics), High temperature, Machinery
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90393
https://doi.org/10.1115/GT2019-90393
View Paper titled, Loop Filling and Start Up With a Closed Loop sCO 2 Brayton Cycle
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Topics: Atmospheric pressure, Brayton cycle, Carbon dioxide, Cycles, Density, Emergencies, Ice, Mechanical testing, Testing, Transients (Dynamics)
Proceedings Papers

Numerical Approach for Real Gas Simulations: Part II — Flow Simulation for Supercritical CO2 Centrifugal Compressor

Swati Saxena, Ramakrishna Mallina, Francisco Moraga, Douglas Hofer
Proc. ASME. GT2017, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A005, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63149
https://doi.org/10.1115/GT2017-63149
View Paper titled, Numerical Approach for Real Gas Simulations: Part II — Flow Simulation for Supercritical CO2 Centrifugal Compressor
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Topics: Compressors, Engineering simulation, Flow simulation, Simulation, Supercritical carbon dioxide, Impellers, Flow (Dynamics), Carbon dioxide, Computational fluid dynamics, Design
Journal Articles

Investigations of Flutter and Aerodynamic Damping of a Turbine Blade: Experimental Characterization

Charles E. Seeley, Christian Wakelam, Xuefeng Zhang, Douglas Hofer, Wei-Min Ren
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. August 2017, 139(8): 081011.
Paper No: TURBO-16-1273
https://doi.org/10.1115/1.4035840
Published Online: April 4, 2017
View Article titled, Investigations of Flutter and Aerodynamic Damping of a Turbine Blade: Experimental Characterization
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Topics: Airfoils, Damping, Flutter (Aerodynamics), Design, Displacement
Proceedings Papers

Investigations of Flutter and Aero Damping of a Turbine Blade: Part 1 — Experimental Characterization

Charles E. Seeley, Christian Wakelam, Xuefeng Zhang, Douglas Hofer, Wei-Min Ren
Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT34A024, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-57930
https://doi.org/10.1115/GT2016-57930
View Paper titled, Investigations of Flutter and Aero Damping of a Turbine Blade: Part 1 — Experimental Characterization
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Topics: Damping, Experimental characterization, Flutter (Aerodynamics), Turbine blades, Airfoils, Cascades (Fluid dynamics), Air flow, Accelerometers, Aerodynamics, Computer simulation