Ocean Energy. Ocean Thermal Energy Conversion Tidal Power Wave Power.

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Presentation transcript:

Ocean Energy

Ocean Thermal Energy Conversion Tidal Power Wave Power

OTEC Produces electricity Uses temperature differences between the surface and depths run heat engine. Highest potential: deep tropical waters like the Gulf of Mexico.

OTEC Second Law of Thermodynamics: Max eff. = (T high - T low )/ T low So, efficiency is pretty low.

Tidal Power – Dam or Barrage Dam or Barrage

Tidal Power – Annapolis Royal, NS

Tidal Power – Tidal Fence

Tidal Power – Tidal Turbine Similar to a wind turbine More power with smaller blades

Tidal Power – East River NY

Wave Power – Oscillating Water Column Off-shore and on- shore technologies Oscillating water column, wave swing, and tapchan are examples

Wave Power - Tapchan

Ocean Power – Disadvantages High capital costs Environmental impacts on sea life Sediment shifts Visual Pollution