Wave power

Made by Zoltán Kalányosclass: 14.B

Chapters- Prolog

- How Wave Power Works

- Likes of the wave power stations

- point absorber (underwater buoys)

- Oscillating Water Column

- Overtopping devices

- Attenuator

- Problems inconections with the Wave Power

Alternative energy source

• Wind power

• Hydropower

• Solar energy

• Biomass

• Geothermal energy

• Wave power

Wave Power Works

-The air makes wave on the water

-The waves moves to the chamber, and make compressed air or vacuum

-In the chamber, cousing air to turn turbine

-The turbine makes elektric power

Wave Power Works

4 main types of design exist for the recovery of energy from the waves

-point absorber (underwater buoys)

-Oscillating Water Column

-Overtopping devices

-Attenuator

Point absorber (underwater buoys)

• A point absorber is a floating structure with components that move relative to each other due to wave action (e.g., a floating buoy inside a fixed cylinder). The relative motion is used to drive electromechanical or hydraulic energy converters

Point absorber (underwater buoys)

Oscillating Water Column

• Oscillating water column consist of a large column of air into which waves flow; these waves pressurise the air and force it through a turbine. This turbine usually has an ability to accept airflow from both directions while always spinning the same way; this allows it to generate power when the wave is entering and leaving the column. Many OWCs use a wells turbine due to its ability to accept bidirectional flow; but some designers are moving towards turbines which can change the angle of blade pitch in response to air flow.

Overtopping devices

Overtopping devices use ramps and

walls to capture water from waves above the mean height of the ocean. This water is stored in a reservoir and is released through turbines; as it loses its potential energy electricity is generated.

Attenuator

• Attenuators are long multisegment floating structures oriented parallel to the direction of the waves. The differing heights of waves along the length of the device causes flexing where the segments connect, and this flexing is connected to hydraulic pumps or other converters.

Problems inconections with the Wave Power

• The most challenging

• The corrosion

• Convert wave power into electricity

• very expensive to produce

• noisy

If you have any question, I’d be pleased to answer them!