Wind power generation will harm the environment, harm the climate and cause noise pollution:
1. the environment, such as the destruction of vegetation and modification of topography, causing soil erosion and land desertification.
2. 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, wind turbines The process of generating electricity is inevitable.
3. The environment around the wind farm is good, so it will become a paradise for many birds, but a large number of birds will be injured by the wind turbines.
How big is the smallest hydroelectric generator?
1. Wind power generation will harm the local ecological environment, for example by destroying vegetation, modifying the topography, causing soil erosion and desertification of the territory.
2. Electromagnetic radiation produced by wind power generation affects human habitation. In wind power generation systems, generators, substations, transmission lines, etc. are the main causes of electromagnetic radiation. When the receiving device attached to the wind farm receives the signal, it will receive the electromagnetic wave signal reflected from the wind turbine blades.
The reflected signal is a delayed signal, which may have a greater impact on the AM radio system; At the same time, the rotation of the turbine blades will also produce a phase shift signal, which may impact the FM radio system. The material the blades are made of will also interfere with electromagnetic waves. If the blades are made of materialsmetal, it will cause serious electromagnetic interference.
In addition, an alternating electromagnetic radiation field will form around high-voltage transmission lines, causing electrostatic induction relative to the ground, causing radio interference and affecting human health.
3. 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, wind turbines The electricity generation process must consume some of the wind energy present in the atmosphere. As an important driver of climate change, changes in wind energy will inevitably lead to climate change.
When some offshore wind farms and inland wind farms operate,if the humidity is relatively 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.
4. Wind turbine blade damage is prone to accidents when the wind turbine blades are subjected to strong winds above 25m/s (wind speed cut off), although the wind turbine is in a state of stop. However, due to the limited bending moment, torque, shear resistance and extrusion that the blade root can withstand, 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 the blades to break, provoregarding accidents and affecting public safety.
5. Noise hazards in wind power generation,For a wind turbine of such size, when the huge blades rotate (one blade requires a special long collapsible truck to transport), its noise is inevitable.
The sound of wind blades can be roughly divided into three categories.
1. Thick noise, produced by the compression of the air and the blades. In windy weather, when we close the doors and windows, we often hear a sharp, harsh sound, which sounds like a ghost. crying or a howling wolf? , coupled with the gloomy sky outside, it's still a little scary to think about it.
2. Load noise, as the name suggests, is caused by the blades carrying a large load.
3. Impulse noise is generated when the Mach number is close to 1. In this way, the impact of noise on the environment cannot be ignored.
Detailed information
Risk response measures:
1. The construction of a wind power plant requires preliminary planning. It should be far from feasible. residential areas and avoid environmentally sensitive areas.
2. Improve the design level of wind power generation so that it can be well integrated into the environment.
3. When developing wind power generation, environmental, economic and social effects must be considered comprehensively, and any of them cannot be ignored. The impact on the environment must be reasonably taken into account in both its positive and negative aspects.
Baidu Encyclopedia - Wind Energy
This can be considered the smallest wind turbine in the world. The diameter of the fan is only 2.8cm to 6cm, and it can automatically adjust the wind direction.
The generator size is 1.3 x 1.4 x 1.7cm, generating 2.5~2.8V 70mA. ~6 super bright LED lights.
Let's share some common sense about making your own wind turbine:
Many people who want to produce wind power barely know what they need to find. a wind farm in advance. The wind farm cannot be guessed, it must be determined with an anemometer, otherwise the wind turbine cannot be installed. Many rotating wind turbines are in an “idle spinning state” and do not produce electricity at all, because. Most wind turbines are expected to produce electricity when wind speeds reach 3.5 to 4 meters per second. A small 400 watt wind turbine appears to be spinning noisily. If the anemometer does not reach 4 meters per second, its electricity production is zero. "Even if the wind speed reaches 4 meters per second, its power output is only 0.5 watts. It must haveachieve wind speeds of more than 8 meters per second. If a leaf is thrown, it will be blown 8 meters in one second.) to produce electricity. It conforms to the power output of “400 watts” stated in the manual. Therefore, many laymen do not first use an anemometer to find a suitable wind field, and in the end they make a "landscape windmill" at best. .