Hydropower from a height of 5 meters can theoretically generate around 2.5 million joules. As the water falls, the potential energy of gravity is converted into kinetic energy, which causes the turbine to rotate and the generator to produce electricity. There will be a loss of energy in the process, that is, it will be impossible to convert all the mechanical energy of the water into electrical energy. The basic principle of hydroelectric generation is to use the difference in water level to produce electricity in conjunction with a hydroelectric generator, that is, the potential energy of the water is converted into mechanical energy of the water wheel, then the mechanical energy is used. run the generator to get electricity. Scientists take advantage of natural water level difference conditions, effectively use fluid engineering and physicsmechanical and carefully combine them to achieve the highest power generation capacity, so that people can use cheap and pollution-free electricity.
There are two ways to produce electricity from water
1. This method is more common among lay people. It is a hydroelectric power station. The hydroelectric plant first stores the water, so that the water has some mechanical energy. When the valve is opened to release the water, the water above flows to the other side of the dam in a certain channel. The water turbine is rotated and the water turbine further drives the generator. The water initially present. Mechanical energy is converted into electrical energy via a water turbine.
2. This method is commonly used in the field of thermal and nuclear energy. Take the example of thermal energy. Let's first talk about the main energy conversion in power centers.thermals. Basically, the chemical energy of coal is converted into mechanical energy and the mechanical energy is converted into electrical energy.
Then, the main way to convert the chemical energy of coal into mechanical energy is to send the pulverized coal into the furnace for combustion. Obviously, burning coal alone can only produce heat. be sent to the boiler for heating (the flue gas produced by burning coal is used to heat the water in the pipe), so that the water heated by the boiler turns into steam and is steam saturated dry. This steam has a certain kinetic energy, and is then sent from the pipe to the steam turbine to do work, and the rotating steam turbine drives the power generation machine to realize the conversion of mechanical energy into electrical energy .