Wind turbine blades can be up to 80 meters long.
The largest wind turbine in the world is located in Maade, Denmark. It is called V164 and was manufactured and installed by Mitsubishi Vestas Offshore Wind Company. This wind turbine is 220 meters high (blade length included), with three giant blades installed on it. Each blade is 80 meters long, which is longer than a Boeing 747. In addition to being the largest, it is also the most powerful wind turbine in the world, under normal circumstances it can produce 260 000 kWh of electricity in 24 hours, enough to meet the electricity consumption of hundreds of homes for a month.
A wind turbine is an electrical device that converts wind energy into mechanical work, which causes the rotor to rotate and ultimately produces alternating current. Wind turbines generally consist of components such as a wind wheel, a generatorr, a director, a tower, a speed limit safety mechanism and an energy storage device. The operating principle of a wind turbine is relatively simple. Wind action. The kinetic energy of the wind is converted into the mechanical energy of the wind rotor shaft, and the generator rotates under the drive of the wind rotor shaft to produce electricity.
Principle of the wind turbine
It is an electrical device that converts wind energy into mechanical energy and mechanical energy into electrical energy. Generally speaking, it is a thermal energy engine that uses the sun as the heat source and the atmosphere as the working fluid. Wind power generation uses natural energy, which is much better than diesel power generation. But if used in an emergency, it is still not as efficient as a diesel generator. Wind energy is not stupidintended as a backup source of energy, but it can be used long term.
The principle of wind power generation is to use wind energy to rotate the blades of the wind turbine, and then use a speed multiplier to increase the rotation speed to encourage the generator to produce electricity. According to current wind turbine technology, electricity production can start at a breeze speed of around three meters per second (the breeze level). Wind energy is becoming a craze around the world because it poses no fuel problems and does not produce radiation or air pollution.
The length of the blades should be judged according to theinstalled capacityof the fan, such as V80, V52, S70 among. the above three models, the blade lengths are 39 meters, 25 meters and 34 meters respectively. The installed capacities are1500, 850 and 1500 respectively. Therefore, the length of the blade should be judged according to the actual situation.
A wind turbine is an electrical device that converts wind energy into mechanical work. The mechanical work causes the rotor to rotate and ultimately produces alternating current. Wind turbines generally consist of components such as a wind wheel, a generator (including devices), a steering (tail), a tower, a speed-limiting safety mechanism, and an energy storage device.
The operating principle of a wind turbine is relatively simple. The wind wheel rotates under the influence of the wind. It converts the kinetic energy of the wind into the mechanical energy of the wind wheel shaft. driving the wind wheel shaft to produce electricity. Generally speaking, wind energy is also solar energy, so we can also say that a wind turbine is aheat generator that uses the sun as the heat source and the atmosphere as the working fluid. Can use a generator.
For many centuries, wind turbines, like hydraulic machines, have played an important role in the development of productivity as a source of energy to replace human and animal energy. The widespread application of electromechanical power in modern times and the discovery of oil deposits in the Middle East in the 1950s slowed the development of wind turbines.
In the early 1970s, due to the “oil crisis”, energy shortages appeared. People have become aware of the instability and limitations of conventional fossil energy supplies, so the search for clean and renewable energy has become a key issue in the modern economy. world. an important subject. As a renewable natural energy sourceand non-polluting, wind energy has once again attracted attention.