Zobrazeno 1 - 10 of 84 pro vyhledávání: '"Timothy O'Doherty"'
1
Numerical study of the effect of tip-speed ratio on hydrokinetic turbine wake recovery
Autor: Timothy O'Doherty, David S. Thompson, Shanti Bhushan, Joshua Bowman, Oumnia El Fajri
Publikováno v: Renewable Energy. 182:725-750
The predictive capabilities of blade-resolved unsteady Reynolds averaged Navier-Stokes (URANS) and detached eddy simulation (DES), the most commonly used hybrid RANS/large eddy simulation (LES) model, are assessed for hydrokinetic turbine performance
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9a1c3eb0f228026ab2b2d9c89e31a05b
https://doi.org/10.1016/j.renene.2021.10.030
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3
A phenomenological study of lab-scale tidal turbine loading under combined irregular wave and shear flow conditions
Autor: Grégory Germain, Catherine Lloyd, Timothy O'Doherty, Cameron Johnstone, Benoît Gaurier, Rodrigo Martinez, Stephanie Ordonez-Sanchez, Matthew Allmark
Publikováno v: Journal of Marine Science and Engineering
Volume 9
Issue 6
Journal Of Marine Science And Engineering (2077-1312) (MDPI AG), 2021-06, Vol. 9, N. 6, P. 593 (25p.)
Journal of Marine Science and Engineering, Vol 9, Iss 593, p 593 (2021)
Tidal devices are likely to faced with shear flows and subjected to various wave climates. The paper presents an experimental study of the combined impacts of shear profile and irregular waves on the loading of a 1/20th scale device operating at peak
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff0ab12af276a60c1891cfb54c02f646
https://orca.cardiff.ac.uk/id/eprint/141958/1/jmse-09-00593-v2.pdf
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4
Numerical models to predict the performance of tidal stream turbines working under off-design conditions
Autor: Stephanie Ordonez-Sanchez, Robert Ellis, Kate Porter, Allan Mason-Jones, Matthew Allmark, Cameron Johnstone, Timothy O'Doherty
Publikováno v: Ocean Engineering. 181:198-211
As previously experienced by the wind industry, it is envisaged that tidal stream turbine blades will present misalignments or blade deformations over time as they are constantly working under harsh and highly unsteady environments. Blade misalignmen
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6bc9953b8f7e2baffecd6a843e5082e8
https://doi.org/10.1016/j.oceaneng.2019.04.027
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5
The impact of turbulence and turbine operating condition on the wakes of tidal turbines
Autor: Timothy O'Doherty, Allan Mason-Jones, Daphne Maria O'Doherty, Matthew Allmark, Benoît Gaurier, Tim Ebdon, Grégory Germain
Publikováno v: Renewable Energy (0960-1481) (Elsevier BV), 2021-03, Vol. 165, N. Part 2, P. 96-116
This thesis examines the impact that turbulence and turbine operating condition have on the wake of a horizontal axis tidal turbine, and the implications of this impact for array design. This is done via the use of computer simulations using a scale-
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9c85d70d139736c251fac85209e1bbc
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6
A waste heat recovery strategy and its deployment: an integrated steelworks case study
Autor: Christopher Williams, Timothy O'Doherty, Richard Marsh, Anthony Giles, Phil Bowen, Daniel Pugh
Steelmaking is energy intensive, with manufacturing facilities representing some of the biggest point-source carbon dioxide (CO2) emitters in the UK. Efficiency improvements are essential with rising energy costs, driving significant investment from
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ecd6d497ac6849656c5fdcca69e96df6
https://orca.cardiff.ac.uk/id/eprint/135925/1/jwarm.20.00011.pdf
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7
Validation of the dynamic load characteristics on a Tidal Stream Turbine when subjected to wave and current interaction
Autor: Benoît Gaurier, Catherine Lloyd, Grégory Germain, Cameron Johnstone, Timothy O'Doherty, Allan Mason-Jones, Rodrigo Martinez, Matthew Allmark, Stephanie Ordonez-Sanchez
Publikováno v: Ocean Engineering (0029-8018) (Elsevier BV), 2021-02, Vol. 222, P. 108360 (24p.)
A comparison of a tidal turbine's performance and structural loads is conducted using lab-scale numerical models and experimental testing under multiple current-only and wave-current conditions at the IFREMER wave-current flume. Experimental testing,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d8a776516bac66253b95efc85d864fa
https://orca.cardiff.ac.uk/id/eprint/136177/4/1-s2.0-S0029801820312683-main.pdf
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10
Performance assessment of a tidal turbine using two flow references
Autor: Magnus Harrold, Pablo Ouro, Timothy O'Doherty
Publikováno v: Harrold, M, Ouro, P & O'Doherty, T 2020, ' Performance assessment of a tidal turbine using two flow references ', Renewable Energy, vol. 153, pp. 624-633 . https://doi.org/10.1016/j.renene.2019.12.052
The measurement of power performance is an important procedure in the design verification and ongoing health monitoring of a tidal turbine. Standardised methods state that the performance should be measured relative to two independently located flow
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e405563f41e2586d2dc42de7dbc667fe
https://orca.cardiff.ac.uk/id/eprint/128071/1/1-s2.0-S096014811931924X-main.pdf
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