Are wind turbines that produce electricity solid or hollow?

Introduction Is the wind turbine that produces electricity solid or hollow? Wind turbines that produce electricity are generally hollow rather than solid. The hollow design of the windmill reduces weight and makes it easier to rotate the windmill

Are wind turbines that produce electricity solid or hollow?

Hollow. Wind turbines that produce electricity are generally hollow rather than solid. The hollow design of the windmill can reduce weight, make it easier to rotate the windmill and reduce wind resistance. In modern wind turbines, wind blades generally adopt a hollow blade structure, which can capture and use wind energy through the principle of aerodynamics to rotate the generator to generate electric power. The solid structures of wind turbines are used more for decorative and scenic purposes and cannot produce electrical energy.

If you use the principle of wind power to generate electricity, install a windmill on the car, and when the car drives, the windmill will rotate to generate electricity and store it in the battery. done...

The idea of ​​“using wind energy from metro tunnels to produce electricitytricity” aroused the curiosity of many people and also aroused some doubts. "Although from the perspective of efficient energy utilization, the wind power generated in the metro system can be used for development and utilization, the wind power generated is too small and it is difficult to achieve economies of scale, which has no economic value in "Zhou Tao, a new energy sector analyst at Great Wall Securities, believes that he has not heard of the practice of to use wind energy in the city to generate electricity around the world. Even if the metro company agrees to develop such a project, it will be difficult to attract investor interest.

Wang Mengshu, an academician of the Chinese Academy of Engineering, is also not optimistic about this project. He believes that the idea of ​​using wind energy in tunnels to produce electricityis simply impossible and technically unreliable. He explained that trains running on metro lines had time intervals. At present, Beijing's fastest Line 1 generally has an interval of more than 2 minutes. Therefore, even if a small wind turbine is installed in the tunnel, it cannot obtain sustainable and stable wind power.

As the two parallel metro tunnels are every 400 to 500 meters, they are connected by passages in the middle. In these two tunnels, the wind generated by the passage of the metro train will enter the other tunnel. Additionally, the trains in the two tunnels run in different directions, so the wind directions are also different. This makes it difficult for wind power equipment to operate continuously and stably.

In response to the experts' doubts, Zhong Yan said that in some actual tests they carried out, they did not find anyuve the problems caused by the wind direction in the tunnel mentioned by academician Wang Mengshu. In response to the questions raised by the experts, they also wished to communicate with relevant experts, including Academician Wang. For safety reasons, they considered designing the wind rotors mounted on both sides of the subway tunnel as thin cylindrical wind rotors.

Have you ever considered the principle of the wind tunnel for the production of electricity in tunnels? Subway operation requires excess air at the front to be pushed toward the rear of the car as quickly as possible. In this way, the locomotive can operate with minimal energy consumption. Adding windproof devices around the tunnel will definitely affect the speed and power consumption of the locomotive. Adding a few wind turbines around the tunnel will increase the windward area of ​​the front of the locomotive. Increase thewind resistance.

Your idea is good, but it is not feasible. First situation: when the car is traveling in the opposite direction to the wind. When the car is driving, the electricity generated by the rotation of the windmill will increase the resistance of the car. In other words, it will significantly increase the fuel consumption of vehicles. ImmediatelyIt converts fuel energy into battery energy. Due to indirect conversion by wind turbines, there will be a huge loss of energy. The gain exceeds the loss.

The second situation is when the car is traveling in the same direction as the wind. This is because the speed of cars is generally faster than that of the wind, so wind power cannot produce electricity.

  • 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