A Structure That is Used to Generate Electricity from Wave Power - Task 1 Process Diagrams

You should spend about 20 minutes on this task.

The diagrams show a structure that is used to generate electricity from wave power.

Summarise the information by selecting and reporting the main features and make comparisons where relevant.

Write at least 150 words

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Sample Answer 1

The given visual representations elucidate the process by which a structure harnessed wave power to generate electricity.

An initial examination of the diagrams reveals two principal operations of the system: the generation of electricity as the sea advances towards the shore and the identical process during the sea's withdrawal. Both scenarios utilize the motion of the waves to create air pressure that actuates a turbine, which in turn produces electricity.

The first scenario depicted in Diagram A illustrates the mechanism during a high tide. Waves entering a chamber exert pressure on air within a column, propelling the turbine into motion. This rotation of the turbine generates electricity, which is then presumably stored or conveyed for use. It is noteworthy that the structure is strategically placed by a cliff or sea wall to capture the energy of advancing waves.

Conversely, Diagram B details the process when the tide recedes. As the water retreats from the chamber, air pressure is again generated, but from the opposite direction, causing the turbine to continue rotating in the same orientation as before. This persistent rotation during both the ebb and flow of the tide ensures a continuous production of electricity.

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Sample Answer 2

The illustration presents the mechanism of a coastal structure that harnesses wave power to produce electricity. This inventive engineering marvel capitalizes on the natural ebb and flow of sea tides.

At the core of this system lies its ability to convert the kinetic energy of waves into electrical power, which is strikingly evident in both stages of the wave cycle. Initially, as waves approach the shoreline, they propel air upwards through a vertical column, activating a turbine connected to a generator. The rotation of this turbine during the tidal influx is the first critical phase of energy production.

Conversely, the retreating waves during the ebb phase illustrate the system's ingenuity. The receding water induces a vacuum that reverses the airflow, yet the turbine continues to spin in the same direction, ensuring a consistent generation of electricity. This dual-phase operation is a testament to the structure's efficiency and its pivotal role in sustainable energy production.

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Sample Answer 3

The diagrams presented delineate the innovative structure that is used to generate electricity from wave power, illustrating its function during different tidal movements.

At the heart of these illustrations lies the structure's dual-faceted capability to harness wave energy. It achieves this through the strategic positioning near a sea wall or cliff, designed to capitalize on both the influx and the retreat of seawater. The overarching process hinges on the conversion of kinetic wave energy into electrical energy, facilitated by the movement of air and the subsequent turning of a turbine.

Elaborating on the first diagram, it showcases the structure in action as the sea advances. Waves crest into the chamber, forcing air up the column and driving the turbine to rotate. This kinetic dance between the elements results in the generation of electricity. The structure's proximity to a sea wall amplifies the wave's force, enhancing the system's efficiency.

In the second diagram, the focus shifts to the ebbing tide. As the sea recedes, the water level in the chamber drops, creating a vacuum that draws air in the opposite direction, yet still maintaining the turbine's rotation in its original direction. This consistent rotational movement, regardless of the tide's direction, underscores the structure's sophisticated design in continuously generating electricity.

Sample Answer 4

The diagrams delineate a sophisticated structure that harnesses wave power to generate electricity, strategically positioned at the edge of the sea.

The most conspicuous features of this structure are its ability to produce electricity by capturing the kinetic energy of waves and the continuous operation of the turbine, regardless of the direction of the airflow. The process is depicted in two phases: one during high tide when waves push into the chamber, and the other during low tide when waves recede.

In detail, during the high tide as shown in Diagram A, waves surge into the chamber, thrusting air upwards through a column towards a turbine. This action causes the turbine to spin, which in turn generates electricity. The structure that is used to generate electricity from wave power exploits the momentum of the waves to create a forceful upward movement of air, thus initiating the energy conversion process.

Diagram B portrays the subsequent phase where the receding waves during ebb create a vacuum that pulls air down through the column, yet ingeniously, the turbine maintains its rotation in the same direction. This continuous rotation during the ebb of the sea waves is crucial, as it ensures an uninterrupted supply of electricity.

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