The diagrams illustrate how electricity is produced from wave energy using a special structure built on a sea wall or cliff.
Overall, the process involves the movement of sea waves into a chamber, which pushes air to rotate a turbine that generates electricity. The system works in both directions of the wave flow.
In the first diagram, when a wave enters the chamber, it forces the air inside to move upwards through a vertical column. As the air rises, it passes through a turbine, causing it to spin. This movement is used to generate electricity. The airflow then escapes through the top of the column. The turbine is connected to an electricity generator that captures the energy produced by the rotation.
In the second diagram, the wave leaves the chamber, creating a vacuum that pulls air back down the column. The air again passes through the turbine in the same direction, causing it to spin once more. This allows the turbine to continue working whether the wave is entering or leaving the chamber, making the system more efficient.