Ocean Renewable Ocean Renewable Energy: Overview & Energy: Overview & Progress Progress Moo-Hyun Kim Moo-Hyun Kim Professor Professor Ocean Engineering Program Ocean Engineering Program Dept. of Civil Engineering Dept. of Civil Engineering Texas A&M University Texas A&M University
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Ocean Renewable Energy: Overview & Progress Moo-Hyun Kim Professor Ocean Engineering Program Dept. of Civil Engineering Texas A&M University.
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Wave & tidal power Wave & tidal power distributiondistribution
Man-made Tidal Energy Man-made Tidal Energy PlantPlant
France La Rance dam and typical turbine/generator configuration: environmental concern
Natural Tidal-Current Energy Natural Tidal-Current Energy
Promising West Coast SitesPromising West Coast Sites
Natural Current Power: Natural Current Power: KoreaKorea
2TW of energy, the equivalent of twice the world’s electricity production, could be harvested from the world’s oceans2TW of energy, the equivalent of twice the world’s electricity production, could be harvested from the world’s oceans
Wave Enegy ResourceWave Enegy Resource
Wave Energy ConversionWave Energy Conversion
Fixed Oscillating Water ColumnOscillating Water ColumnFloating AttenuatorAttenuator
Floating OvertoppingOvertopping Floating
Point Point
AbsorberAbsorber
Land-based OWCLand-based OWCOscillating Water ColumnOscillating Water Column
Winner of 2006: US, Ger, India, SpainWinner of 2006: US, Ger, India, Spain
Texas Wind Energy Texas Wind Energy ProjectionProjection
Wind Energy Pros & ConsWind Energy Pros & ConsProsPros• Endless/renewableEndless/renewable• No CONo CO22 Emission Emission• No Land Space (Offshore)No Land Space (Offshore)• No cooling, No pollution, No wasteNo cooling, No pollution, No waste
ConsCons• Noise, Shade, Unsightly, BirdsNoise, Shade, Unsightly, Birds• Survive? Severe Environment Survive? Severe Environment
(Offshore)(Offshore)
Wind-Energy TurbineWind-Energy Turbine
Feasibility/Economy grows with Feasibility/Economy grows with blade sizeblade size
Blade Dia Blade Dia (m)(m)
Hub Hub height (m)height (m)
Power Power (MW)(MW)
Ref (# of Ref (# of homes)homes)
7070 5555 1.6 1.6 500500
100100 7070 3.63.6 12001200
120120 8080 55 16001600
What 500-MW Wind-E Farm Can What 500-MW Wind-E Farm Can Do!Do!
• Provide clean energy for 160K homesProvide clean energy for 160K homes
• Eliminating (per year)Eliminating (per year)- 60-mil lb of CO60-mil lb of CO22 (leading green-house gas)(leading green-house gas)
- 130K lb of NOx 130K lb of NOx (main comp. of smog)(main comp. of smog)
- 300K lb of Sulfur Dioxide 300K lb of Sulfur Dioxide (leading (leading precursor of acid rain)precursor of acid rain)