aquamarine power by oyster

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Presented by Prajwal Malge Email: [email protected] Aquamarine Power By Oyster Seminar on

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Presented by Prajwal MalgeEmail: [email protected] Power By Oyster

Seminar on

OverviewIntroductionOcean Wave EnergyAquamarine PowerComponents of OysterFuture Prospects ConclusionReferences

IntroductionThe ocean contains a vast energy resource, and there are a number of ways in which this energy can be harnessed. Wave energy forms as kinetic energy from the wind is transmitted to the upper surface of the ocean. Marine Renewable Energy Resources are classified as Ocean tides, Ocean waves, Marine current, & OTEC.

Much work has been carried out in the field of research and development of technology capable of harnessing energy from the waves surface of the ocean.

like Pelamis Wave Power , Oscillating Water Column, Aquamarine Power Oyster.

Oyster Concept

The next generation of the Oyster wave energy converter which is being developed by Aquamarine Power Ltd.

Oyster is a near-shore hydroelectric wave energy converter. The oscillation of wave energy converter is used to pump fresh water through a high-pressure pipeline to a turbine and electricity will be generated.

Aquamarine PowerWave energy formation.The Oyster concept..Hydroelectric conversion.

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How It Works

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Components of OysterHydrodynamic to Mechanical (WEC Flap) Mechanical to Hydraulic (Pistons) Hydraulic to Mechanical (Pelton Wheel) Mechanical to Electrical (Generator)The Oyster prototype has been designed to capture wave energy and convert it into grid quality electrical power.This process involves essentially four conversion systems.

Wave Energy Converter (WEC Flap)Wave energy converters can also be designed for operation in specific water depth conditions: deep water, intermediate water or shallow water. The fundamental device design will be dependant on the location of the device and the intended resource characteristics.

Continued

The flap is 18 m wide by 11 m hight. The body of the flap is constructed from five 1.8 m diameter steel tubes. The power take-off cylinders are mounted at the quarter points of the flap.

Continued..

Mechanical to Hydraulic (Pistons)

Characteristic

High capture efficiency High power to weight ratio Designed for extreme seas High reliability Modular design

Energy Wave Roller WaveRoller is a hinged flap, bottom mounted device consisting of three oscillating plates on a single gravity base foundation. The back and forth movement of surging waves moves the plate, and the kinetic energy that is produced can be converted to hydraulic pressure of a working fluid.

continuedLaglee wave power which is a Norvegian company. This is also a wave Energy converter device.The wings are able to freely rotate through 360

At present, both the 50kW and 250kW prototypes are in the development phase.

Specification of Oyster Plant

Future Prospects The objective is to build wave power stations of 20 to 100MW. Research is ongoing to determine the hydrodynamic performance of clusters of flaps in different geometric patterns. WaveRoller is a modular concept, which means that the plant capacity is formed by connecting multiple production modules into a WaveRoller plant.

Plant overview

Conclusion Oyster has been designed to maximise power capture by optimising the installation depth and flap width, using the full height of the water column, and a low hinge point.

References

Alan Henry, Ashkan Rafiee, Pal Schmitt, Frederic Dias and Trevor Whittaker, The Characteristics of Wave Impacts on an Oscillating Wave Surge Converter, Journal of Ocean and Wind Energy (ISSN 2310-3604), (May 2014), Vol. 1, No. 2, pp. 101110

T.J.T. Whittaker, D. Collier, M Folley, M. Osterried, A Henry and M Crowley. The development of oyster a shallow water surging wave energy device. In 7th European Wave and Tidal Energy Conference EWTEC (2007), Portugal

Thank You