1. Wind energy was stopped because its harm to the environment was far greater than its economic benefits, and it was not environmentally friendly. The dangers are: 2. Wind power generation will harm the local ecological environment, destroy vegetation, change the terrain, and cause soil erosion and desertification. 3. The electromagnetic radiation produced by wind power affects human habitation. In wind power systems, generators, substations and transmission lines are the main sources of electromagnetic radiation. Additional receivers in wind power plants, when receiving signals, will pick up electromagnetic wave signals reflected by the wind turbine blades. The reflected signal is a lagging signal that has a great impact on AM radio systems. 4. Wind power affects the local climate. Wind power is the use of wind energy in the atmosphere. According to the law of conservation of energy, the consumption and production of one type of heat will inevitably produce or consume another type of energy. Therefore, the power generation process of wind turbines will inevitably consume part of the wind energy in the atmosphere. As one of the important factors of climate change, wind energy will inevitably Will bring about climate change. 5. Wind energy blades are prone to safety accidents. When the wind turbine blades of a wind turbine are subjected to strong winds of more than 25m/s, the bending moment, torque, shear strength and extrusion strength that the blade roots can withstand are limited. In severe cases, the entire blade will fly out and cause personnel damage. Casualties and damage to buildings on roads. 6. Noise hazards from wind power generation. For such a large-scale fan, the noise is inevitable when the blades rotate with huge party fees. The noise of the fan blades can be roughly divided into three categories: thickness noise, which is caused by the compression of air and blades. In windy weather, with doors and windows closed, do you often hear sharp and harsh sounds, which feel like howling ghosts and wolves, coupled with the gloomy sky outside, it is a bit scary to think about it; load noise, as the name suggests, is caused by the large load on the blades. ; impulse noise, that is, when the Mach number is close to 1. In this way, the impact of noise on the environment cannot be ignored.
Of course not. The function of an electric fan is to convert electromotive force into wind energy. The size of the wind speed is determined by the speed of the motor. The fan blades are the source of the direction of the wind, so the more fan blades, the better. . Of course, it is best not to use fan blades, such as Dyson Pure Cool Me. No fan blades are safer, and the gentle wind will not cause damage to the body's joints. Its bladeless fan design is lightweight and easy to move, and can be placed anywhere in the home, bringing ultimate cooling and comfort. The most interesting thing is that you can adjust the direction of the arc surface at the top of the machine by hand to change the angle of the airflow according to your needs. In terms of airflow technology design, it uses Dyson Core Flow airflow aggregation technology, which can allow airflow to be sprayed accurately. The air quality near our home is poor. With it, I can not only feel the comfortable and cool air, but also help filter and lock indoor air pollutants, making my living life better