Basically no radiation
There is virtually no radiation in power plants. There is no hydropower or wind power. If a thermal power plant has its own radioactive source for metal defect detection, it must be registered with the public security department, and it must now be kept in a designated place outside the plant and removed only when it is used. daily danger. ?
However, thermal energy production can produce radiation: coal contains some radioactive substances. But these radiations are infinitely smaller than the radiation you receive from cosmic rays, ground, and air over the course of a year (called natural background), so you may think there is no radiation .
Actually, it's not just electricity that causes radiation. In fact, everything around us emits radiation.ent. The simplest is thermal radiation. However, radiation within a certain range will not affect the human body. For example, the amount of radiation from a photovoltaic plant is actually about the same as that from ordinary household appliances.
What are the dangers of wind power plants?
There is almost no radiation in power plants.
There is no hydroelectric or wind power at all.
If a thermal power plant has its own radioactive source for detecting metal defects, it must be registered with the public security department and must now be kept in a designated place outside the plant and removed. only when used. There is no daily danger.
Nuclear power plants require nuclear fuel to produce electricity, so they have sources of radiation. Howevernt, the current safety protection facilities and radiation protection facilities are quite complete, which can be said to be 100% safe. Barring extremely damaging natural disasters like the earthquake or tsunami in Fukushima, Japan, danger may arise. Therefore, access and approval of nuclear power in China is now very strict.
1. Wind energy production will harm the local ecological environment, for example by destroying vegetation, changing topography, causing soil erosion and desertification.
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 thesignal, 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 metal materials, 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 consumming and producing 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 factor in climate change, changes in wind energy will inevitably lead to climate change.
To a certain extent When some offshore wind farms and inland wind farms are operating, if the humidity is relatively high, huge plumes of water vapor will condense behind the wind turbines, which can have an impact on local microclimates, such as humidity and sand and dust deposition.
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 timing ofhe limited bending, torque, shear strength and extrusion that the blade root can withstand, in severe cases the entire blade can 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.
5. Noise risks linked to wind energy production. For a wind turbine of such size, when the huge blades rotate (one blade requires a special long collapsible truck to transport), noise is inevitable.
Wind blade noise can be roughly divided into three categories.
1. Thick noise, produced by the compression of the air and the blades. By weatherwindy, when we close the doors and windows, we often hear a sharp and 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 the production ofwind energy, 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