Views: 21 Author: Site Editor Publish Time: 2023-05-08 Origin: Site
The use value of the solar power station is that it can generate electricity without emitting greenhouse gases. Solar power is a renewable resource, which means that we can never run out of it. The average home solar power system can offset about 100 pounds of carbon dioxide emissions each year
What is the physical principle of solar power station to generate electricity?
Where can we find solar power station?
Solar thermal power stations
The reason why the solar power station can generate electricity is through solar cells, also known as photovoltaic cells (planar crystals made of semiconductor films with different electronic properties, which can generate a strong internal electric field). To protect these photovoltaic cells from the environment, they need to be connected and packaged in modules. When light enters the crystal, electrons generated by the light are separated by these electric fields, creating an electromotive force between the top and bottom surfaces of the solar cell. At this point, if the circuit is connected, a DC current is generated, which is stored in the storage battery and then converted to the required AC power by the solid-state electronic power regulation device.
solar power stations are usually built in remote, rural areas where there is little or no access to the grid. Solar power can also be used in urban areas, but it is usually less effective due to the presence of buildings and other objects that block sunlight. solar power stations typically consist of a large array of solar panels, which convert sunlight into electricity. The electricity is then sent to a substation, where it is converted into AC power and fed into the grid.
Solar thermal power stations use the heat from the sun to generate electricity. The sun’s energy is converted into heat by solar panels, which is then used to power a turbine that generates electricity. Solar thermal power plants can either be “stand-alone” systems, or they can be integrated into existing power grids.
Solar thermal power plants are classified according to their heat source: parabolic trough, solar tower, and solar dish. Parabolic trough solar thermal power plants are the most common type of plant in operation today. They consist of long, curved mirrors that reflect and focus sunlight onto a receiver pipe that runs along the focal point of the mirror. The receiver pipe contains a fluid (usually oil) that is heated by the sun’s rays and used to turn a turbine that generates electricity.
Solar tower solar thermal power plants use a large number of mirrors (heliostats) to reflect sunlight onto a central receiver located at the top of a tower. The receiver collects the sun’s heat and transfers it to water, which turns into steam and drives a turbine to generate electricity. Solar tower technology is still in the development stage and no commercial plants are currently in operation.
Solar dish solar thermal power plants use a large reflective dish to concentrate sunlight onto a small receiver located at the focal point of the dish. The receiver absorbs the sun’s heat and transfers it to fluid (usually liquid nitrogen) inside tubes running through the center
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