Question

Explain the energy changes taking place in a hydroelectric dam?

Answer 1

Energy changes taking place in a hydroelectric dam:

1. As the water flows into reservoir from the catchment area, the kinetic energy of flowing water changes to potential energy.
2. As the water is released through a control valve, the potential energy of water changes to kinetic energy.
3. As the water flowing at a high speed strikes the blades of the turbine, its kinetic energy changes to the rotational kinetic energy of the turbine.
4. As the turbine is coupled to the shaft of the generator, the rotational kinetic energy of the turbine changes to the rotational kinetic energy of armature.
5. As the coils of armature rotate in the magnetic field, the rotational kinetic energy of armature changes to the electric energy in its coils.