Currently, the production processes of several large power plants are as follows:
1. Thermal power plant
Boiler: chemical energy of the fuel → thermal energy of the combustion gases → thermal energy of the steam
p>Steam turbine: thermal energy of the steam → mechanical energy< /p>
Generator: mechanical energy → electrical energy
The overall production process: fuel chemical energy → thermal energy → mechanical energy → electrical energy
2. Hydroelectric Power Plant
The basic process of energy conversion in a hydroelectric power plant is: water energy → mechanical energy → electrical energy
3. Nuclear power plant
Nuclear power plant The basic process of energy conversion: atomic energy → thermal energy → mechanical energy → electrical energy
4.
The operating principle of the wind turbine is relatively simple. The tower wind wheelnot under the action of the wind. Convert the kinetic energy of the wind into the mechanical energy of the wind wheel shaft. The generator rotates, driven by the wind turbine shaft, to produce electricity.
What do power plants use to produce electricity?
There are some studies on the impact of large-scale wind power plants on local climate, and the conclusions are somewhat confusing. Some increase precipitation, others reduce it, others increase temperature, and still others decrease it. temperature, so the jury is still out.
This relates to the basis for comparison of current research methods. After all, there are too many factors that affect the climate and it is difficult to completely exclude other influences. Therefore, comparison results are difficult to obtain. be reliable and will also be different from those in different places. The climatic environment is linked.
The main factors that affect precipitation are the water content of clouds and temperature changes. If the water content is high enough, the clouds are thick enough and if there are temperature changes, rain will occur. The most fundamental principle of wind power generation is that a conductor cuts a magnetic field to generate current (i.e. magnetism generates electricity) and the mechanical energy generated by the wind pushing the wind turbine is converted into electrical energy.
Most power plants use thermal energy to produce electricity. They use fuels such as coal, oil and natural gas. Thermal power plants can produce large amounts of electricity, but they pollute the environment. Some power plants use heat generated bynuclear reactions to produce electricity. Nuclear power plants produce large amounts of electricity, but they release nuclear waste.
Some power plants can produce electricity without fuel, such as: solar power plants, which use thermal energy from the sun to produce electricity; geothermal power plants, which use thermal energy from the ground to produce electricity; ; hydroelectric power plants, which use droplets of water to produce electricity; wind power plants use wind energy to produce electricity; Tidal power plants use the energy of the tides to produce electricity. The bad news is that these energy sources are still incapable of producing electricity. meeting all our human needs for electricity; the good news is that humans can find better ways to get energypollution-free electricity.
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