Impact of wind energy on climate and environment

Wind energy affects the 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 power generation process of wind turbines must consume part of the wind energy in the atmosphere, and wind energy is one of the important factors of climate change, and its changes will inevitably lead to changes climatic.

When some offshore wind farms and inland wind farms are operating, if the humidity is relatively high, a huge tail of water vapor will condense behind the windienne, 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 mainly reflected in the reduction of greenhouse gas emissions and affects thewind impact distribution; 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 and causing the Soil erosion. and land desertification. RadiationElectromagnetic waves produced by wind energy affect 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 doIn fact, it will inevitably cause a lot of damage, but the use and developmentment of any kind of energy will cause more or less certain 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 nearby wildlife to decline or migrate elsewhere in search of safe habitat.

4. Impact on local climate: TheWind 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 to rotate the blades of the wind turbine, and then use a speed multiplier to increase the rotating speed.n in order 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 toward the blades, an aerodynamic force is generated on the blades to rotate the wind wheel. The blade material requires high strength and light weight and isoften made of fiberglass or other composite materials (such as carbon fiber).

The effect of wind direction on the wind farm

is proportional to the cubic power.

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. Generally speaking, the annual duration of use of electricity production from onshore wind turbinesis around 2,000 hours, while that of offshore wind turbines can often reach over 3,000 hours.

2. For wind power equipment, the terrain is complex and uneven, and the wind speeds at different heights often vary greatly, resulting in wind shear. In turbulence, the upper and lower forces on the wind wheel are uneven, which can lead to vibration, fatigue and even blade breakage. At the same time, 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.

Wind direction has an important parameter icon called wind frequency rose diagram, which is an important indicatorto consider the quality of the wind field. Wind direction plays a very important role in wind. farm. If the wind frequency diagram shows that the frequency in the main wind direction is very high, which means that the efficiency of the wind farm unit is relatively high, thereby reducing the impact of wind direction fluctuations wind on equipment and power generation. As follows: