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Introductory part Wind energy has become a major source of energy production, changing the energy model, making it cleaner and more sustainable. Improved technology allows some wind farms to produce electricity at as low a cost as coal or nuclear power plants. There is no doubt that the energy we face has its advantages and disadvantages, but the former wins out overwhelmingly. And there are many advantages to wind power
Mission Wind energy is one of the cleanest sources of energy after solar energy. The reason for this is that it is not a combustion process during its formation. Consequently, it does not produce toxic gases or solid waste. The energy capacity of a wind turbine is similar to the energy capacity of 1,000 kilograms of oil. In addition, the turbine itself has a very long life cycle before it can be disposed of. Maintenance costs for wind turbines and turbines are relatively low. In areas with strong winds, the cost per kilowatt of production is very low. In some cases, production costs are the same as coal or even nuclear power
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Strategy There are many kinds of wind turbines, but their whole structure can be divided into two main parts - mechanical and electrical. The mechanical part includes: wind wheel, transmission mechanism, speed limiting or speed control mechanism, brake mechanism, tower of rotating base housing and so on. The electrical part includes: generator, junction box or controller, battery, inverter, and the like. The functions of each part are as follows: The wind wheel is the energy conversion device of the wind turbine. Its function is to convert wind into mechanical energy and use the rotation of the wind wheel to drive a generator to generate electricity. The wind wheel is an important component of the wind turbine and basically consists of three parts: the blade, the petiole and the wheel stage. The switching mechanism between the rotor and the generator Its role is to change direction and shift gears. For 100 W micro-miniature wind turbines, since all generators use low-speed generators, the gearbox is usually omitted and a direct connection between wind turbine and generator is used. Speed limiting mechanism and speed control mechanism. The operating environment of a wind turbine is relatively harsh and heavily affected by natural wind conditions, and sometimes subject to sudden gusts or high winds. To ensure the safe and reliable operation of a wind turbine and to operate a wind turbine within a limited speed range, the necessary speed control and speed limiting mechanism must be set up. Common speed control mechanisms include centrifugal torque, sideways windwheel deflection, bow tilt, pneumatic damping, windwheel eccentricity, and counterweight tail. Rotating base case. The design of the rotating base case is very simple, but it is one of the important components of a wind turbine. Its function is to support the entire head (wind wheel, generator, etc.) and make it rotate freely at the top end of the tower. The function of the steering mechanism is to keep the leaves of the wind turbine upright in a headwind so that the blade can receive maximum wind energy for maximum power output. High-speed wind turbines are divided into two types: downwind and upwind, depending on the spatial position of the wind turbine and the oncoming wind. Towers are usually subdivided into overhead, simple, and single-stack. Most small hundred-watt-class wind turbines use the single rod type. The generator is the working device for the entire wind energy system. Its role is to convert wind into electrical energy. Generators commonly used are DC generators and silicon rectifier generators. A silicon rectifier generator is distinguished by the presence of a permanent magnet and voltage. Compared to DC generators, silicon rectifier generators are characterized by small size, light weight, simple construction and good low-speed charging characteristics. The distribution unit or power controller is an integral part of the wind turbine that maintains normal external power. For a wind turbine, because natural winds are both strong and weak, operation is sometimes unavailable, and the generator cannot be directly connected to the electrical equipment and must be used in conjunction with the battery to provide a stable output voltage. As for the batteries, overcharging or excessive discharge will shorten their service life. Consequently, the power distribution box must have the necessary protective devices to ensure the normal use of the generating set. Battery. In a wind turbine, the accumulator is both an energy storage device and a source of stable output voltage. According to the difference in electrolytes, it can be divided into two types: acidic and alkaline. Lead-acid batteries, iron-nickel batteries, and tin-nickel batteries are commonly used. Inverter. An inverter is a device that converts direct current to alternating current. The output voltage of micro-miniature wind turbines is usually 12 V, 24 V, 36 V, which can only be used for DC electrical appliances of appropriate voltage. Nowadays, most household appliances such as televisions, washing machines, refrigerators and electric motors use 220V AC. Therefore, it is necessary to use an inverter to convert DC to AC for use in household appliances
INVESMENT
ANALYSIS
Thus, we can say that today the use of wind energy is not only a concern for our nature, but also a good alternative source of electricity in your home or business. It will be especially beneficial to install a wind turbine, if the house or farm has not yet been connected to electricity. Add to this the constant increase in electricity prices (over 10% per year). Agree that in this case it is more profitable to buy a wind turbine - it will cost much cheaper. Advantages of wind power plants Wind is a renewable and virtually inexhaustible source of energy. Wind power plants do not produce carbon monoxide (CO), carbon dioxide (C02) and nitrogen and sulfur oxides, dust pollutants and other harmful waste. A large wind turbine is relatively easy and cheap to maintain. Wind farms can reduce dependence on natural fuels, hydro resources and nuclear reactors to produce electricity. Large wind turbines can be widely spaced on the ground. This allows power sources to be dispersed regionally and helps to create a failure-sensitive power system (protected against catastrophic failures and terrorist attacks). Wind power can be used as an additional source of energy along with other ways of generating electricity. This diversifies the country's power supply system. Large wind turbines can be placed on offshore platforms - on large lakes, in the ocean just as much as on land. Even the largest wind turbines take up little space, and other activities can be carried out at their locations - farming or cattle breeding, for example

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