How is electricity produced?

Introduction How electricity is produced Different types of electricity generation have different ways of producing electricity, which are specifically divided into: 1. Thermal energy uses the energy contained in fossil fuels such as coal, oil and natural gas to produ

How is electricity produced?

Different types of power generation have different ways of generating electricity, which are specifically divided into:

1. Thermal energy

Use. coal, oil and The method of producing electricity from the energy contained in fossil fuels such as natural gas is collectively called thermal power generation. According to the power generation method, thermal power generation is divided into coal-fired steam turbine power generation, oil-fired steam turbine power generation, gas-fired combined cycle power generation, steam and power generation by internal combustion engine.

2. Hydroelectricity

Hydroelectricity is a complete engineering installation that converts water energy into electrical energy. It generally includes a reservoir formed by water retention and drainage buildings, a systemwater diversion from a hydroelectric power station. , and power plant building, electromechanical equipment, etc.

The high level water from the reservoir flows into the factory building through the water diversion system to drive the hydroelectric generator set to generate electric power, which is then injected into the electrical network via the step-up transformer. , switching station and transmission line.

3. Wind power

Wind power uses wind energy to turn the blades of the windmill, then increases the rotation speed through a speed multiplier to cause the generator to produce electricity . According to current wind turbine technology, electricity production can begin at a breeze speed of around three kilometers per second (the degree of breeze).

4. Nuclear energy

A nuclear power plant is a new type of power plantique which uses the energy contained in the nucleus to produce electrical energy. Nuclear power plants can be roughly divided into two parts: one is a nuclear island that uses nuclear energy to produce steam, including reactors and primary loop systems; the other is a conventional island that uses steam to generate electricity, including a turbine-generator system; .

Electricity in the 18th century:

In 1767, Joseph Priestley conducted experiments and discovered that the electric force acted within 'a loaded metal container. is zero. From this experimental result, he accurately guessed that the attraction and universal gravitation of charged objects acting on each other obey the same law.

In 1785, Charles Coulomb used a torsion balance to conduct experiments that confirmed Priestley's conjecture. ThereThe force exerted by two charged objects on each other is inversely proportional to the square of the distance. It establishes the fundamental law of electrostatics, Coulomb's law. At this point, the study of electricity was elevated to the status of an exact science.

In 1791, Luigi Galvani discovered that if a frog is connected to an electrostatic generator to form a closed circuit, and then the electrostatic generator is turned on, the frog's muscles will tremble. This experiment demonstrates that nerve cells rely on electrical media to transmit signals to muscles. He thus created the academic field of bioelectricity.

Electricity is a secondary energy source and is not a natural resource; water is a natural resource.

The second question is that hydraulic energy is a natural resource, but electrical energy is not.

Electricity production relies on water, because energyThe gravitational potential of water is converted into electrical energy. The so-called water energy includes the translational energy of the tides and the gravitational potential energy due to height differences.

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