describe how hydro energy can be converted into electrical energy write any two limitation of hydro energy
Answers
The water stored behind the dams at height during rains, have potential energy. When the water is brought down the dam through narrow pipes, this potential energy gets converted into kinetic energy. This water is directed towards turbine blades.This kinetic energy is used to rotate the blades of the turbine, and thus rotating the axle. This generates electricity , which is then transmitted through wires. The two limitations of hydro energy are :- 1.) the locations where suitable dam can be built are limited. 2.) high infrastructure cost is waste when there is scanty rainfall.
Answer:
Conversion of hydro energy into electrical energy
High rise dams are constructed on the river to obstruct the flow of water to collect it at a suitable height. The stored water has a lot of potential energy.
The water from a suitable height is allowed to fall on the blades of a turbine located at the bottom of a dam through a pipe.
Kinetic energy of flowing water rotates the turbine rapidly. Rotation of turbine helps the armature coil of generator to rotate rapidly in the magnetic field. Thus, hydroelectricity is generated.
Limitations of hydro energy:
(i) All river-sites are not suitable for construction of dams.
(ii) Large ecosystems are destroyed when submerged under the water in dam.
Explanation: