Wind cars are also environmentally friendly cars.
This is a new type of car powered entirely by wind energy. This wind car was designed and invented by American engineer David Burns. The car has novel design, ingenious design, lightness and flexibility, and deserves to be a wonder in the green car family.
The driving device of this wind car is different from ordinary cars. It consists of two electric motors installed on the two front wheels. The process of converting and transmitting power from a wind car is as follows: the car chassis is equipped with a set of specialized components - the “wind cone”. As the car moves forward, the airflow rushes into the wind cone. The air inlet duct and gathers in the wind cone. At the other end of the cone is a turbfan-shaped ine, which converts wind energy into electrical energy through an integrated generator and stores it continuously in a battery. transmits electrical energy to the two motors on the front wheels to move the car forward.
The body of the wind car is long and narrow, the overall structure is naturally streamlined, and the appearance is very unique. The seats in the car are single seats, arranged in a row from front to back, which are both beautiful and comfortable.
What energy does China mainly depend on to generate electricity?
The diameter of the blade is not professional, it should This is the scanning diameter. Common blade shapes are 126/110/114, etc., and the corresponding blade sizes are 68m, 54m and 56m; now the diameter of the largest wind turbine blade has exceeded 70 meters, which is equivalent to the wingspan of a Boeing; aircraft.
In thatWhen it comes to materials, it's more complicated. Different parts of the blade have different materials. Generally speaking, three categories are used, carbon fiber and fiberglass as the exterior surface, and balsa wood and foam as the surface. base material.
The other thing is that carbon fiber binder is ideal because it has better strength and is lighter, but it is also a problem because it is too expensive. Balsa wood is balsa wood. As for foam, there are relatively many types, but generally hard foam products account for 90% of the share in this field.
The main materials of wind turbine blades are fiberglass fabrics and reinforced resins.
Large megawatt blade spar caps can use a carbon-glass hybrid design, and hull cores typically use glass. . Fiber fabric
In addition to LM,major domestic and foreign wind turbine blade manufacturers such as VESTAS, SIEMENS, GAMESA, etc. all use epoxy resin systems; resin and fiberglass fabric, using polyester resin, the bonding speed is fast, the post-curing process does not require heating, and the mold rotation efficiency is high;
Wind turbines turn clockwise, why don't they turn counterclockwise?
China's electricity production relies mainly on thermal energy.
As China has the largest coal reserves in the world, it has sufficient conditions for the development of thermal energy. Next comes hydroelectricity, mainly in the south and southwest, then nuclear and finally wind power.
Thermal power generation uses the thermal energy generated when mcombustible materials are burned.A method of generating power that converts power-generating devices into electrical energy. Due to the shortage of fossil fuels on earth, humans are trying their best to develop nuclear power generation, nuclear fusion power generation and high-efficiency solar power generation, so as to eventually solve the energy problems facing human society. The first thermal energy production was carried out in the Gare du Nord thermal power station in Paris in 1875.
Wind energy production
Converting wind energy into electrical energy is the most basic way to use wind energy. Wind turbines generally consist of components such as a wind turbine, a generator (including devices), a deflector (tail), a tower, a speed limiting safety mechanism and a deviceenergy storage.
The operating principle of a wind turbine is relatively simple. The wind wheel rotates under the influence of the wind and converts the kinetic energy of the wind into the mechanical energy of the wind wheel shaft. The generator rotates, driven by the wind turbine shaft, to produce electricity.
The wind wheel is a wind collection device. Its function is to convert the kinetic energy of the circulating air into mechanical energy of rotation of the wind wheel. Generally, the rotor of a wind turbine is made up of 2 or 3 blades. In wind turbines, three types of generators have been used, namely DC generators, synchronous alternator and asynchronous alternator.
The ancestor of the wind turbine is the windmill. Early windmills were made by hand and did not have strict design specifications. They were of two types: clockwise and dans counterclockwise. In the suburbs of London, England, you can see two types of rotating wind turbines. There is little difference between them except the direction of rotation.
Surprisingly, the world-famous Dutch windmills are a typical representative of windmills, most of which rotate counterclockwise. The first Dutch windmill imported from Germany gradually developed its own characteristics during the localization process. Due to its long history, the windmill's reverse temporal rotation is no longer available. One thing to say, the Dutch don't like ink, they are lazy in the blade installation process. When installing a wind turbine, it is necessary to nail a mesh fan to the main mast, where a few wind turns will be placed on the surface. As most Dutch people are also brought to uUsing their right hand, they move the pole away from the left, ultimately resulting in a counterclockwise rotation. As Dutch windmills became popular, this method of spinning continued to be imitated and spread throughout later generations, and it continues today.
From a physical point of view, there is no difference in the power generation performance of a wind turbine between clockwise and counterclockwise. 'a watch. We could even see two rotating wind turbines, but that would be visually uncomfortable. In fact, most people never realize that we are more accustomed to looking at objects in a clockwise direction.
Why do wind turbines move clockwise? Few people intentionally care about the direction of rotation, but most rotating objects on displayto long-term daily life have adopted clockwise rotation, which has gradually become a habit. Modern rotating machines use clockwise clocks, the oldest timekeeping tools are Japanese. The shadow of the Japanese dial rotates clockwise in the northern hemisphere, and in the southern hemisphere the shadow rotates counterclockwise.
In other words, if the inventor was Brazilian, all clocks would now run counterclockwise, and more machines would run counterclockwise. watch.change. With the advent of the clock, the southern hemisphere was not accepted in the sense of the southern hemisphere. For a long time here, Earthlings in the southern hemisphere adopted by default a unified clockwise rotation rule.