What are the applications of wind energy?

The applications of wind energy include wind power generation, sail assistance, wind water lifting, and wind heating.

Wind power generation converts the kinetic energy of wind into electrical energy. Currently, the world's energy from burning coal each year is only one-third of that provided by wind in a year. Therefore, domestic and foreign governments attach great importance to the use of wind power to generate electricity and develop new energy sources.

Sail navigation refers to a ship propulsion method that uses wind power as part of the propulsion power to move the ship forward. With the development of motorized ships today, in order to save fuel and increase speed, the ancient sail aid has also been developed. Japan, a major shipping country, has adopted computer-controlled sails to assist navigation on 10,000-ton cargo ships, with a fuel saving rate of 15%.

Wind-powered water lifting has been widely used since ancient times. Modern wind-powered water lifters are divided into two categories according to their uses: one is a wind-powered water lifter with high lift and small flow rate; the other is a wind-powered water lifter with low lift and large flow rate.

Wind-induced heating is mainly caused by mechanical heating. There are four types of wind heating: liquid stirring heating, solid friction heating, liquid extrusion heating and eddy current heating. At present, wind heating has entered the practical stage and is mainly used for heating bathrooms, houses, greenhouses, poultry, livestock houses, etc.

History

The history of human use of wind energy can be traced back to BC. However, for thousands of years, the development of wind energy technology has been slow and people have not paid enough attention. However, since the world oil crisis in 1973, under the dual pressure of conventional energy shortages and the deterioration of the global ecological environment, wind energy has made great progress as a part of new energy.

Wind energy, as a pollution-free and renewable new energy, has huge development potential, especially for coastal islands, remote mountainous areas with inconvenient transportation, vast and sparsely populated grassland pastures, as well as areas far away from the power grid and in the near future. Rural areas and border areas where internal power grids are still difficult to reach are of great significance as a reliable way to solve the problem of production and living energy.

Even in developed countries, wind energy is receiving increasing attention as an efficient and clean new energy. For example, the U.S. Department of Energy once investigated that wind energy in Texas and South Dakota alone The density is enough to supply the electricity consumption of the entire United States.