Tribological challenges of scaling up tidal turbine blades

Research output: Contribution to conferenceProceeding

Abstract

Generating electricity from renewable resources (wind, wave and tidal) is of increasing interest. Of all marine renewables, tidal energy, by comparison, possesses the higher persistency and predictability over long time scales and the higher density of water than air results in greater power output from a tidal turbine than a wind turbine with similar dimensions. However, due to the nature of the tides, developing a reliable device for such environments, especially with an increased rotor diameter, raises more challenges to be addressed including the tribological challenges such as sediment erosion, cavitation erosion and their possible synergistic effects on the tidal turbine blades. This research focuses on testing and developing materials for improved tribological performance in tidal environments. This includes producing a variety of composite materials with different fibres and layouts reinforcement to evaluate two main tribological issues of composite materials in tidal environments: matrix cutting and reinforcement fracture using a loped test rig, which measures the effects of impact angle, particle size and concentrations at different tip speeds. The test samples are analysed using scanning electron microscopy (SEM) to conduct a surface topography and characterisation.

Conference

Conference11th European Wave and Tidal Energy Conference (EWTEC2015)
CountryFrance
CityNantes
Period6/09/1511/09/15

Fingerprint

Turbomachine blades
Reinforcement
Turbines
Cavitation corrosion
Tides
Composite materials
Surface topography
Wind turbines
Erosion
Sediments
Electricity
Rotors
Particle size
Scanning electron microscopy
Fibers
Testing
Air
Water

Keywords

  • tidal turbine
  • composite materials
  • erosion
  • particle erosion
  • impact angles
  • offshore renewable energy
  • tribology

Cite this

Sharifi, S., Johnstone, C., & Stack, M. M. (2015). Tribological challenges of scaling up tidal turbine blades. 11th European Wave and Tidal Energy Conference (EWTEC2015), Nantes, France.
Sharifi, Shayan ; Johnstone, Cameron ; Stack, Margaret M. / Tribological challenges of scaling up tidal turbine blades. 11th European Wave and Tidal Energy Conference (EWTEC2015), Nantes, France.9 p.
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title = "Tribological challenges of scaling up tidal turbine blades",
abstract = "Generating electricity from renewable resources (wind, wave and tidal) is of increasing interest. Of all marine renewables, tidal energy, by comparison, possesses the higher persistency and predictability over long time scales and the higher density of water than air results in greater power output from a tidal turbine than a wind turbine with similar dimensions. However, due to the nature of the tides, developing a reliable device for such environments, especially with an increased rotor diameter, raises more challenges to be addressed including the tribological challenges such as sediment erosion, cavitation erosion and their possible synergistic effects on the tidal turbine blades. This research focuses on testing and developing materials for improved tribological performance in tidal environments. This includes producing a variety of composite materials with different fibres and layouts reinforcement to evaluate two main tribological issues of composite materials in tidal environments: matrix cutting and reinforcement fracture using a loped test rig, which measures the effects of impact angle, particle size and concentrations at different tip speeds. The test samples are analysed using scanning electron microscopy (SEM) to conduct a surface topography and characterisation.",
keywords = "tidal turbine, composite materials, erosion, particle erosion, impact angles, offshore renewable energy, tribology",
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year = "2015",
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note = "11th European Wave and Tidal Energy Conference (EWTEC2015) ; Conference date: 06-09-2015 Through 11-09-2015",

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Sharifi, S, Johnstone, C & Stack, MM 2015, 'Tribological challenges of scaling up tidal turbine blades' 11th European Wave and Tidal Energy Conference (EWTEC2015), Nantes, France, 6/09/15 - 11/09/15, .

Tribological challenges of scaling up tidal turbine blades. / Sharifi, Shayan; Johnstone, Cameron; Stack, Margaret M.

2015. 11th European Wave and Tidal Energy Conference (EWTEC2015), Nantes, France.

Research output: Contribution to conferenceProceeding

TY - CONF

T1 - Tribological challenges of scaling up tidal turbine blades

AU - Sharifi, Shayan

AU - Johnstone, Cameron

AU - Stack, Margaret M.

PY - 2015/9/6

Y1 - 2015/9/6

N2 - Generating electricity from renewable resources (wind, wave and tidal) is of increasing interest. Of all marine renewables, tidal energy, by comparison, possesses the higher persistency and predictability over long time scales and the higher density of water than air results in greater power output from a tidal turbine than a wind turbine with similar dimensions. However, due to the nature of the tides, developing a reliable device for such environments, especially with an increased rotor diameter, raises more challenges to be addressed including the tribological challenges such as sediment erosion, cavitation erosion and their possible synergistic effects on the tidal turbine blades. This research focuses on testing and developing materials for improved tribological performance in tidal environments. This includes producing a variety of composite materials with different fibres and layouts reinforcement to evaluate two main tribological issues of composite materials in tidal environments: matrix cutting and reinforcement fracture using a loped test rig, which measures the effects of impact angle, particle size and concentrations at different tip speeds. The test samples are analysed using scanning electron microscopy (SEM) to conduct a surface topography and characterisation.

AB - Generating electricity from renewable resources (wind, wave and tidal) is of increasing interest. Of all marine renewables, tidal energy, by comparison, possesses the higher persistency and predictability over long time scales and the higher density of water than air results in greater power output from a tidal turbine than a wind turbine with similar dimensions. However, due to the nature of the tides, developing a reliable device for such environments, especially with an increased rotor diameter, raises more challenges to be addressed including the tribological challenges such as sediment erosion, cavitation erosion and their possible synergistic effects on the tidal turbine blades. This research focuses on testing and developing materials for improved tribological performance in tidal environments. This includes producing a variety of composite materials with different fibres and layouts reinforcement to evaluate two main tribological issues of composite materials in tidal environments: matrix cutting and reinforcement fracture using a loped test rig, which measures the effects of impact angle, particle size and concentrations at different tip speeds. The test samples are analysed using scanning electron microscopy (SEM) to conduct a surface topography and characterisation.

KW - tidal turbine

KW - composite materials

KW - erosion

KW - particle erosion

KW - impact angles

KW - offshore renewable energy

KW - tribology

UR - http://www.ewtec.org/ewtec2015/

UR - http://www.ewtec.org/

M3 - Proceeding

ER -

Sharifi S, Johnstone C, Stack MM. Tribological challenges of scaling up tidal turbine blades. 2015. 11th European Wave and Tidal Energy Conference (EWTEC2015), Nantes, France.