The Spanish bladeless wind turbine has an eye-catching design. How does it work to produce electrici

Introduction The Spanish bladeless wind turbine has an eye-catching design. How does it work to produce electricity? New energy is a very popular trend currently. There is a Vortex blade in Spain.

The Spanish bladeless wind turbine has an eye-catching design. How does it work to produce electrici

Nowadays, new energy is a very popular trend. In Spain, a company Vortex Bladeless has developed this type of bladeless fan, which does not require a lot of bulky materials, and its cost is also lower. The noise is also very low.

It uses the kinetic energy of the wind to be captured, thus using an induction generator or a piezoelectric generator to convert the kinetic energy of the wind into electrical energy.

The principle uses the Karman vortex effect, which is an important phenomenon in fluid mechanics. It is often found in nature. When the constant flow under certain conditions bypasses certain objects, the object periodically breaks away from both sides. Double-row linear vortices with opposite directions of rotation and a regular arrangement. After non-linear action, a Karman vortex street is formed.

Speaking of Carmen Vortex Street, there is aother real event. In 1940, a suspension bridge with a main span of 853.4 meters was constructed over Tacoma Canyon in Washington State, United States, at a cost of US$6.4. It took 4 months to complete it. Later, on November 7 of the same year, a wind with a speed of 19 meters per second was encountered. Although the wind was not very strong, the bridge experienced violent torsional and amplitude vibrations. became larger and larger until the bridge deck tilted 45 degrees. At about 100 degrees, the downrods were pushed aside one by one, causing the bridge's steel girders to break and collapse, falling into the canyon. was filming film on the bridge, recording the initial vibration of the bridge. The entire process of its final destruction later became valuable information for the United States Federal Highway Administration to investigate the cause of the accident. When people have askedinvestigated the accident and collected historical data, they. were surprised to find that from 1818 to the end of the 19th century, bridge vibrations caused by wind had at least 11 suspension bridges damaged.

After World War II, research was conducted into the causes of wind damage to the Tacoma Bridge. Von Kármán wrote in his book "The Development of Aerodynamics" in 1954 that the destruction of the Tacoma Narrows Bridge was caused by the resonance of periodic vortices. The designers wanted to build a less expensive structure and used flat sheets to replace the trusses as side walls. . Unfortunately, these flat plates caused vortices to emit, causing the bridge body to begin twisting vibrations. The damage to the bridge was caused by the resonance of vibrations with the emission of vortices.

To put it simply and easily, it is the vibration causede by the change in speed of the fluid passing through the obstacle, which causes it to generate electricity.

Bladeless wind turbines should be the newest type.

The principle behind Vortex wind power generation is the Karman vortex effect in fluid dynamics, which refers to the fact that when a constant incoming flow bypasses certain objects under certain conditions, the two sides of the object fall periodically. Two-row linear vortices with opposite rotation directions and regular arrangement are produced after nonlinear action, a Karman vortex street is formed. For example, water flowing through the pillars of a bridge and wind blowing through towers, chimneys, cables, etc. will form Karman vortices. Once the vortices are large enough, they can cause the structure to oscillate. Vortex takes advantage of this aerodynamic instability to maximize the oscillationation and capture mechanical energy, then use this mechanical energy to generate electricity. Naturally, with traditionalThe design of this device is completely different from that of turbines. It mainly consists of a fixed mast, a generator and a hollow, lightweight, semi-rigid fiberglass cylinder on top. Vortex automatically changes stiffness and “synchronizes” with wind speed to maintain resonance without any mechanical or human intervention. The use of the vortex spill effect for wind power generation represents a technological leap forward in wind power that will produce power more efficiently, cheaper and more environmentally friendly. 'environment. The technology has attracted interest from Harvard University as well as Power, Inc., SunEdison's TerraForm renewable energy division, and Dat Venture.

  • Popular Focus
  • Where is the cheapest battery wholesale?

    Where is the cheapest battery wholesale in Tangxia, Sanyuanli, Baiyun District? There is an enterprise specializing in the independent production of electric vehicles in Tangxia, Sanyuanli, Baiyun District, Baiyun Sanyuanli Avenue, Baiyun Sanyuanli Street
    08-02
  • Four 3.7V lithium batteries in series and parallel produce 7.4V/4.4A. How to reduce it to 4.8V/4.4A?

    Four 3.7V lithium batteries in series and parallel produce 7.4V/4.4A. I personally think it is impossible to reduce it to 4.8V/4.4A. Because the discharge platform of lithium batteries is generally set
    08-10
  • What are the materials of the negative electrodes of lithium batteries?

    What are the materials of the negative electrodes of lithium batteries? The main commercial applications of lithium batteries include graphite, which is a sheet of copper used to guide current and which does not react. another safe
    08-02
  • The difference between 18500 and 26500 batteries

    What is the difference between 18500 and 26500 batteries? The answer above is 18650. The person asking the question should ask what is the difference between 18505 and 26500 batteries. In the case of Fuant ER1
    08-02
  • What does 3.7V 80mAh written on a lithium battery mean?

    What does 3.7V 80mAh written on a lithium battery mean? 3.7 V, 80 mA = 0.08 A, H means 1 hour, or 3600 seconds. Taken together, it is
    08-02
  • How long does a lithium battery (cell phone battery) last?

    How long does a lithium battery (cell phone battery) last? The lifespan of mobile phone batteries, under normal conditions of use and without serious impact, the lifespan set by the manufacturer must be 5 years.
    08-02
  • Will lithium batteries explode when charging?

    Will lithium batteries explode when charged? Will lithium batteries explode when charged? Lithium battery explosions usually occur during the charging process, because the negative electrode material of lithium batteries is graphite or other carbon materi
    08-02
  • Parameters of lgdas31865 lithium battery

    Parameters of lgdas31865 lithium battery The parameters of lgdas31865 lithium battery are as follows: LGDAS31865 is a model 18650 lithium battery with a capacity of
    08-02
  • What are the main components of lithium battery electrolyte?

    What are the main components of lithium battery electrolyte? The composition of lithium battery electrolyte is shown below. 1. Ethylene carbonate: molecular formula C3H4O3. Colorless transparent liquid (>35℃), room temperature
    08-02
  • Who are the lithium battery manufacturers in Shandong?

    What are the lithium battery manufacturers in Shandong? Shandong Shengyang Power Supply Co., Ltd. and Shandong Weineng Environmental Protection Power Technology Co., Ltd. 1. Shandong Shengyang Power Supply Co., Ltd. is located in Shengyang, Qufu City.
    08-02
  • Types of drone batteries available in 2024

    Part 1. Types of drone batteries available in 2024In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in
    07-30
  • How long does it take to charge 26650 battery?

    How long does it take to charge a 26650 battery? The charging time for a 26650 battery is generally between 3 and 6 hours, but the precise time depends on the power of the charger and the capacity of the battery. in general
    08-02
  • For what?Sure, here's an article based on the phrase "For what?

    The simple yet profound question, "For what?" often serves as a gateway to deeper reflections on purpose and intention. It is a query that invites us to delve into the reasons behind actions, decisions, and circumstances that shape our lives and the wor
    08-02
  • Choosing the Right Cart Battery

    This comprehensive guide will walk you through everything you need about cart batteries, from understanding different types to making an informed purchase decision.
    08-02
  • 30mAh~500mAh 3.7 V Li-ion Battery

    Welcome to Ufine's collection of 3.7V lithium-ion batteries ranging from 30mAh to 500mAh. Explore a diverse range of compact and lightweight batteries suitable for various electronic devices,
    08-02
  • Here are 10 essential facts about drone batteries for 2024.

    10 Key Facts About Drone Battery for 2024 In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in the consumer, commercial, and industrial sectors. Below are the primary types of drone batteries avai
    08-02
  • Could you please explain the difference among IMR, ICR, INR, and IFR 18650 batteries?

    What is the Difference Between IMR, ICR, INR, and IFR 18650 Battery?In 18650 batteries, discerning the differences among IMR, ICR, INR, and IFR types is fundamental for tailored and efficient battery usage. These distinct
    08-02
  • Safety considerations for cart batteries

    Selecting the ideal cart battery is crucial for ensuring optimal performance and longevity of your electric vehicle or vaping device. This comprehensive guide w
    08-01