People use thermal energy generated during the combustion of coal to convert it into electrical energy through electricity generation devices (including power plant boilers, steam turbines, generators and their devices auxiliaries). Among all the methods of producing electricity, thermal energy production is one of the main ones. the longest and most important story.
Coal has been used as fuel for 800 years. Coal has been widely used as a fuel for industrial production since the Industrial Revolution of the late 18th century. With the invention and use of the steam engine, coal was widely used as a fuel for industrial production, bringing unprecedented productivity to society and promoting the development of industry. Thus, coal, steel, chemicals, mining and metallemergency have developed. industries. Coal has a high calorific value and the calorific value of standard coal is 7000 kcal/kg. In addition, coal has abundant reserves on earth, is widely distributed, and is generally relatively easy to extract, so it is widely used as a fuel in various industrial production.
Electricity generation methods include: thermal power generation, hydroelectric power generation, nuclear power generation, wind power generation, hydroelectric power generation, geothermal energy, 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.
The proElectricity 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 gradually began to use solar energy, wind energy and geothermal energy. , ocean energy and other energy sources to generate electricity.