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Daniel Buhagiar
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Journal Articles

Assessing the Potential Increase in the Energy Storage Density of Subsea Hydro-Pneumatic Accumulators Using Carbon Dioxide in Lieu of Air

Charise Cutajar, Tonio Sant, Luke Jurgen Briffa, Daniel Buhagiar
Journal: Journal of Thermal Science and Engineering Applications
Article Type: Research Papers
J. Thermal Sci. Eng. Appl. March 2023, 15(3): 031001.
Paper No: TSEA-22-1346
DOI: https://doi.org/10.1115/1.4056247
Published Online: December 6, 2022
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Topics: Carbon dioxide, Energy storage, Ocean engineering, Pressure, Seas, Secondary cells, Storage, Temperature, Density, Seawater
Proceedings Papers

Investigating the Increase in Energy Storage Density of Subsea Hydro-Pneumatic Accumulators Using a Compressible Fluid Undergoing Phase Change

Charise Cutajar, Tonio Sant, Luke J. Briffa, Daniel Buhagiar
Proc. ASME. OMAE2022, Volume 8: Ocean Renewable Energy, V008T09A011, June 5–10, 2022
Paper No: OMAE2022-78138
DOI: https://doi.org/10.1115/OMAE2022-78138
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Topics: Density, Energy storage, Fluids, Ocean engineering, Secondary cells
Proceedings Papers

Assessing the Impact of Integrating Energy Storage on the Dynamic Response of a Spar-Type Floating Wind Turbine

Charise Cutajar, Tonio Sant, Robert N. Farrugia, Daniel Buhagiar
Proc. ASME. IOWTC2019, ASME 2019 2nd International Offshore Wind Technical Conference, V001T01A038, November 3–6, 2019
Paper No: IOWTC2019-7577
DOI: https://doi.org/10.1115/IOWTC2019-7577
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Topics: Dynamic response, Energy storage, Floating wind turbines, Ocean engineering, Offshore wind turbines, Spar platforms, Wind, Wing spars
Proceedings Papers

Modelling the Dynamic Response and Loads of Floating Offshore Wind Turbine Structures With Integrated Compressed Air Energy Storage

Tonio Sant, Daniel Buhagiar, Robert N. Farrugia
Proc. ASME. OMAE2017, Volume 10: Ocean Renewable Energy, V010T09A049, June 25–30, 2017
Paper No: OMAE2017-61587
DOI: https://doi.org/10.1115/OMAE2017-61587
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Topics: Compressed air, Dynamic response, Energy storage, Modeling, Offshore wind turbines, Stress, Tension-leg platforms, Wind turbines, Weight (Mass), Buoyancy
Proceedings Papers

Numerical Analysis of a Large-Scale Hydraulic Wind Farm With Integrated Hydraulic Energy Storage

Daniel Buhagiar, Tonio Sant
Proc. ASME. ES2016, Volume 1: Biofuels, Hydrogen, Syngas, and Alternate Fuels; CHP and Hybrid Power and Energy Systems; Concentrating Solar Power; Energy Storage; Environmental, Economic, and Policy Considerations of Advanced Energy Systems; Geothermal, Ocean, and Emerging Energy Technologies; Photovoltaics; Posters; Solar Chemistry; Sustainable Building Energy Systems; Sustainable Infrastructure and Transportation; Thermodynamic Analysis of Energy Systems; Wind Energy Systems and Technologies, V001T14A002, June 26–30, 2016
Paper No: ES2016-59539
DOI: https://doi.org/10.1115/ES2016-59539
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Topics: Energy storage, Numerical analysis, Wind farms, Turbines, Storage, Wind turbines, Pipelines, Seawater, Electronics, Engineering simulation
Journal Articles

A Comparison of Two Pressure Control Concepts for Hydraulic Offshore Wind Turbines

Daniel Buhagiar, Tonio Sant, Marvin Bugeja
Journal: Journal of Dynamic Systems, Measurement, and Control
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. August 2016, 138(8): 081007.
Paper No: DS-15-1477
DOI: https://doi.org/10.1115/1.4033104
Published Online: May 25, 2016
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Topics: Control equipment, Flow (Dynamics), Pressure, Turbines, Wind turbines, Modeling, Pumps, Rotors, Actuators, Offshore wind turbines
Proceedings Papers

Control of an Open-Loop Hydraulic Offshore Wind Turbine Using a Variable-Area Orifice

Daniel Buhagiar, Tonio Sant, Marvin K. Bugeja
Proc. ASME. OMAE2015, Volume 9: Ocean Renewable Energy, V009T09A043, May 31–June 5, 2015
Paper No: OMAE2015-41388
DOI: https://doi.org/10.1115/OMAE2015-41388
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Topics: Offshore wind turbines, Nozzles, Turbines, Generators, Mechanical drives, Pipelines, Pumps, Seawater, Electric power transmission, Electronic components