Electricity generation methods include: thermal power generation, hydroelectric power generation, nuclear power generation, wind power generation, geothermal power generation, etc.
Power generation refers to the production process of using power generation devices to convert raw energy such as water energy, thermal energy from petrochemical fuels (coal, oil, natural gas), nuclear energy, etc. .in electrical energy.
Electricity generation is used to meet the needs of various departments of the national economy and people's lives.
Nowadays, fossil fuels are still used as the main form of electricity generation, but fossil fuel resources are not plentiful and are becoming increasingly depleted. Human beings have graduallystarted using solar energy, wind energy and geothermal energy. , ocean energy and other energy sources to generate electricity.
When the mass of an object does not change, its kinetic energy is related to the speed of movement. The greater the speed, the greater the kinetic energy while the internal energy of an object of the same mass is greater. is linked to temperature. Under normal circumstances, the temperature The higher it is, the greater the internal energy.
Hydroelectric power generation definitely uses the mechanical energy (kinetic energy and potential energy) of water to do work on the generator, operating the generator and thereby generating electrical energy . The energy transformation in this process is: mechanical energy of water → mechanical energy of generator → electrical energy.
In addition, once the running watere passes through the generator, its speed decreases, but its temperature practically does not change, so the electrical energy is converted from the mechanical energy of the water and not from the internal energy.