1. Thermal energy production: internal energy is converted into mechanical energy;
Specific process: chemical energy of fuel - internal energy - mechanical energy - electrical energy
2. . Hydraulic energy Energy production: mechanical energy is converted into electrical energy;
Specific process: mechanical energy - electrical energy
3. Nuclear power plant: nuclear energy is converted into electrical energy;
Specific process: nuclear energy - internal energy - mechanical energy - electrical energy
The thermal energy production process is a procedure that converts the chemical energy generated during combustion of fuels (such as coal) into electrical energy. According to their functions, they can be divided into two categories, namely vapor condensing type and thermoelectric type. The first only provides electrical energy to users, whilethat thermoelectricity not only provides electrical energy to users, but also provides thermal energy such as steam and hot water to users, which is called "heat and power cogeneration ". Thermal power plants have different capacities and different specific shapes, but their production processes are similar.
Firepower:
Advantages: The technology is mature and the current cost is low. Low geographic environment requirements.
Disadvantages: high pollution, poor prospects for sustainable development. It consumes a lot of energy and has low efficiency.
Hydraulics:
Advantages: long history, low subsequent costs. No pollution, renewable water energy, large total water energy reserves.
Disadvantages: large capital investments and high environmental requirementsgeographical irony. For example, southwest China is extremely rich in water resources, but the natural environment is harsh and construction is difficult, making it impossible to use. them.
Detailed information:
The production of electricity is the use of devices of production of electricity to convert water. Energy and fossil energy in Fuel thermal energy, nuclear energy, solar energy, wind energy, geothermal energy, ocean energy and other energies are converted into electrical energy . By the end of the 20th century, most electricity generation used the method of burning fossil fuels. However, fossil fuel resources are not abundant and are becoming increasingly depleted. At present, humans are gradually resorting to renewable energies (hydraulic energy, electricitysolar energy, energy). wind energy, geothermal energy, marine energy, etc.) to produce electricity.
The basic principle of hydroelectricity is to use the difference in water level to produce electricity with a hydroelectric generator, that is, the potential energy of the water is converted into mechanical energy of the water wheel, and then into mechanical energy. mechanical energy is used to drive the generator to obtain electricity. Scientists take advantage of the natural conditions of water level difference, effectively use fluid engineering and mechanical physics, and carefully combine them to achieve the highest power generation capacity, so that people can use an electricity cheap and pollution-free.
Thermal power generation generally refers to the use of thermal energy generated when fuels such as oil,coal and natural gas are burned to heat water, turning the water into water vapor at high temperature and high pressure, and then use the water vapor to drive a generator to produce electricity. The general name of the method. Power plants that use coal, oil, or natural gas as fuel are collectively called thermal power plants.
Reference Material Baidu Encyclopedia: Power Generation