The first and second floors are simply amateurish. How did you calculate the energy conversion efficiency of 15% to 17%? If the efficiency was greater than ten percent, would there be as many wind turbines manufactured on the market? If you don't understand, don't mislead people. For example, the Cp value of the current 1.5MW horizontal axis wind turbine is about 0.45, which means that the utilization rate of wind power is about 45%.
The losses caused by the wind flowing through the wake of the turbine and the influence of other units during the fabric machine are called wind losses.
Vertical axis wind turbines do not consider the problem of fabric machine and will not produce wake flow, because the biggest advantage of vertical axis wind turbine is that it does not doesn't have to face the wind. There will therefore be no wake effect. If you have questions about wind energy productionenne, ask them to me, I'm a professional. Born in a major.
Four major dangers linked to wind energy production
The impacts of wind energy production on the climate and environment are as follows :
< p>1. The impact of wind energy on the environmentWind energy affects the local climate. Wind energy uses wind energy present in the atmosphere. the consumption and production of one energy must necessarily produce or consume another type of energy, so the energy production process of wind turbines must consume part of the wind energy present in the atmosphere. As one of the important factors of climate change, wind energy changes. will inevitably lead to climate change.
When some offshore wind farms and inland wind farms are operating, if the humidity isrelatively high, a huge tail of water vapor will condense behind the wind turbine, which can affect the local microclimate, as humidity, sand and dust have an impact.
Accidents are likely to occur when wind turbine blades are damaged. When the wind turbine blades are subjected to strong winds greater than 25 m/s (wind speed cut), although the wind turbine is stopped. In severe cases, the entire blade may fly away.
Causes casualties and damage to buildings on the road (although wind turbines are mainly located in coastal areas with sparsely populated areas). In addition to extreme winds, blade surface corrosion, lightning strikes, ice cover, cracks, etc. can occur. can easily cause blades to break, causing accidents and affecting public safety.
2. The impact of wind energy on the climate
It is reflected prprimarily in reducing greenhouse gas emissions and affects the distribution of wind impact; The environment is mainly reflected in the occupation of the territory, noise pollution and the impact on wildlife.
Wind power uses wind energy to generate electricity, which has many advantages, such as environmental protection, renewable energy, low cost, etc. However, wind energy also has some problems, such as its impact on the environment and wildlife, so we While developing wind energy, a series of measures must be taken to reduce the impact on the environment and wildlife in order to achieve sustainable development.
3. Risks associated with wind energy production
Wind energy production will harm the local ecological environment, for example by destroying vegetation, changing topography,causing soil erosion and land desertification. Electromagnetic radiation produced by wind energy affects human habitation. An alternating electromagnetic radiation field forms around high-voltage transmission lines and affects human health.
Wind energy affects the local climate. Wind energy uses wind energy present in the atmosphere. The energy production process of wind turbines consumes part of the wind energy in the atmosphere and causes climate change.
The power of wind energy is directly proportional to the wind speed
The four major risks of wind energy: noise damage, environmental damage. landscape and wildlife damage Animals cause disturbance and affect the local climate.
1. Noise risk: In fact, wind turbines will causeeffect of numerous unavoidable risks during their operation. However, for the use and development of any type of energy, there can be many. will cause damage to nature.
2. Landscape Damage: Because wind turbines are typically large and must be built in open areas, they often destroy beautiful mountains, beaches, and farmland. This will not only affect the living environment of local residents, but will also have a negative impact on the tourism industry. Many attractions have become difficult to enjoy due to the construction of wind turbines, and this is an issue that deserves attention.
3. Interference with wildlife: Low-frequency noise and electromagnetic radiation from generators can disrupt the living and migration patterns of sensitive animals. Some studies suggest that the operation of wind turbines can cause the decline ofnearby wildlife or their migration elsewhere in search of safe habitat.
4. Impact on local climate: Wind energy uses wind energy present in the atmosphere. According to the law of conservation of energy, the consumption and production of one type of energy must produce or consume another type of energy. Therefore, the energy production process of wind turbines must consume part of the wind energy present in the atmosphere. As an important factor in climate change, changes in wind energy will inevitably lead to climate change.
The working principle of wind power generation
Convert the kinetic energy of wind into mechanical kinetic energy, and then convert the mechanical energy in electrical kinetic energy This is the production of wind energy. The principle of wind power generation is to use wind energy tor spin the blades of the wind turbine, then use a speed multiplier to increase the rotation speed to encourage the generator to produce electricity. Depending on wind turbine technology, electricity production can begin at a breeze speed (the degree of breeze) of around three meters per second.
The devices needed to produce wind energy are called wind turbines. This type of wind turbine can be roughly divided into three parts: the wind wheel (including the tail rudder), the generator, and the tower. Large-scale wind power plants generally do not have a tail rudder, and usually only small wind power plants (including domestic types) do.
The wind wheel is an important element that converts the kinetic energy of the wind into mechanical energy. It is made up of several blades. When the wind blows towards the blades, an aerodynamic force is generated on the blades.blades to turn the wind wheel. The material of the paddle requires high strength and light weight. It is mainly made of fiberglass or other composite materials (like carbon fiber).
Proportional to the cube.
1. The most critical factor in wind power generation is wind size, and wind conditions offshore are generally better than on land. Wind speeds at sea 10 kilometers offshore are typically 20% higher than on land. along the coast. The power generated by wind turbines is proportional to the cube of the wind speed, so under the same conditions, the annual power generated by offshore wind turbines can be 70% higher than that produced on land. At the same time, there are rarely periods of calm wind at sea, so wind turbines can produce electricity for longer. In general, the annual duration of use of theElectricity production from onshore wind turbines is around 2,000 hours, while that from offshore wind turbines can often reach more than 3,000 hours.
2. For wind power equipment, the land terrain is complex and rugged, and wind speeds at different heights often vary greatly, resulting in wind shear and turbulence, which exerts higher and lower forces on the wind. unbalanced wheel, which can lead to vibration, fatigue and even blade breakage, and the transmission system is also easily damaged. There are few such risks at sea. In addition, offshore wind power is mainly built tens of kilometers from the coast and close to the centers of energy consumption, so there is practically no risk abandonment of wind energy.