The diagrams illustrate the structure and working process of a wave-energy machine, along with possible locations where such machines can be installed.
Overall, the machine converts the movement of sea waves into electricity through a two-stage process involving air flow and turbine, while the choice of the location affects both energy output and installation cost.
In terms of design, the wave-energy machine consists of a vertical chamber partially submerged in seawater. As waves enter the chamber, the rising water level forces air upwards through the upper duct. This moving air spins a turbine, which is connected to a generator to produce electricity. When the wave retreats, air is drawn back down through the chamber, causing the turbine to rotate again., thereby generating power continuously. This bidirectional air flow allows the machine to operate efficiently regardless of wave direction.
Regarding location options, wave-energy machines can be installed either close to the shore or further out at sea. Near-shore installations experience smaller waves, resulting in lower electricity output but reduced construction and maintenance costs. In contrast, offshore locations are exposed to larger waves, which generate higher levels of energy; however, this advantage comes with significantly higher installation expenses.
In summary, while offshore machines are more productive, near-shore installations offer a more economical alternative, highlighting a trade-off between energy output and cost.