Human beings use wind¡¯s history can be traced back to BC-Hummer wind turbine

Home > > Wind turbine news > > Human beings use wind¡¯s history can be traced back to BC

Human beings use wind¡¯s history can be traced back to BC

Human beings use wind¡¯s history can be traced back to BC. China is the country with one of the earliest use wind. Chinese people for centuries BC using wind carry water. Irrigation, grinding surface, ChongMi ship sails push forward with. In the song dynasty is the noon of China should use windmills, was the fashion at the time the windmills, the perpendicular axis have been used for many years. Abroad, the second century B.C., GuBoSi people will use vertical axis windmills milling. 10 century with a windmill generators islamic people carry in the Middle East, the 11th century windmills has received extensive application. The 13th century windmills to Europe in the 14th century preached, has become the indispensable original motive in Europe. In Holland windmill first used in the Rhine river delta lake wetland and low later used to extract the oil, courtyards and saw wood. Just because of the emergence of steam engine, makes Europe windmills number sharply.

For thousands of years, wind energy technology develops slowly, nor cause people seriously enough. But since 1973 oil crisis in the world since conventional energy dries and global worsening ecological environment under double pressures of new energy, wind power generators as part of the regained had great development. Wind power as a kind of pollution and renewable new energy has the huge development potential, especially in coastal islands, the transportation inconvenient remote mountainous area, the grassland, and sparsely populated ranch near term from network and power also difficult to achieve rural, border, as the solution to production and life energy, a reliable way to have the very vital significance.

Even in developed countries, wind energy, as a kind of new energy efficient and cleaner also is valued. The United States had in 1974 began to implement federal wind energy plan. Its content is mainly: to assess the wind turbines resources; state Study the development of social and environmental wind power; Improve the performance of a wind turbine, reduce cost; The main research for agriculture and other users of 100kw with less than the wind machine; For the power company and industrial users design megawatts of wind generators. Grade The United States has in the 1980s successfully developed 100, 200, 2000, 25, 62, 7200kw 6 kinds of wind units. At present the United States has become the world wind turbines installed capacity most populous country, with wind generators more than 2X104MW, every year still growing at 10 percent. Now the world¡¯s largest new wind turbine generators in Hawaii already up and running, its a wind turbine blades 97.5 m diameter rotor 144t, heavy wind Angle, adjust and unit operation is controlled by computer, the annual capacity of up to 1000 million kw ¡¤ h. According to the U.S. department of energy¡¯s statistics to 1990 American wind power has 1% of total hair power. In Sweden, Holland, Britain, Denmark, Germany, Japan, Spain, also according to the respective national conditions to develop the corresponding wind power plan. Wind turbines such as Sweden 1990 the installed capacity has reached 10 million in 350MW, electricity, kw h. Denmark in 1978 Jutland wind power station is built, the installed capacity 2000kw, three blades for the sweeping diameter 58m 54m, concrete tower, is expected to be high in 2005, 10% of the power demand in the future from the wind. Germany in 1980 in yi north river built a wind force power station, the installed capacity for 3000kw, by the end of this century wind power will also 8% of total capacity. Britain, the British Isles endangered Marine, wind is very rich, government to wind development also attaches great importance to 1990, wind power capacity have accounted for Britain 2% of the total. In Japan, October 1991 light tianjin strait aomori county of Japan¡¯s largest wind power stations, five tables for wind generator running for 700 homes provide electricity. China is located in southeast Asia, on the Pacific west 0.85%] [11.89, monsoon strong. Monsoon is the basic characteristics of China¡¯s climate, such as winter monsoon in north China, northeast China for as long as 6 months for seven months. The east Asian monsoon throughout China¡¯s east barcap is. According to the national weather service estimates, the total reserves the wind resources for 16 billion kw each year, recent development about 1.6 billion kw, Inner Mongolia, qinghai, heilongjiang, gansu provinces such as wind energy reserves in China than the average speed front row, the number of days in the 3m/s more than 200 days.

The development of Chinese wind turbines in the 1950s, at the end of the BuPeng is all sorts of wood, 1959 type windmill in jiangsu province only have 20 million wooden windmill. In the mid 60s wind carry water machine is mainly development. The mid-seventies later wind development and utilization period included in "key state projects, rapid development. In the 1980s, China has mid-term later from Denmark, Belgium, Sweden, the U.S. and Germany introduce a group of medium, large wind generators. In xinjiang, Inner Mongolia¡¯s airport and shandong, zhejiang, fujian, guangdong island established with 8 demonstrative wind farm. In 1992 the installed capacity has reached 8MW. Xinjiang DaBanCheng installed capacity of wind farm has reached 3300kw, and is the largest wind farm. To the end of 1990 national wind carry water irrigation area has reached 258 million acres. In 1997, 10 million kw new wind power. At present China has developed more than 100 different types, different amounts of wind power generation units and initially formed a wind machine industry. Still, compared with the developed countries, China¡¯s wind power exploitation are still very backward, not only development speed slow and backward in technology, far not form a scale. In the 21st century, China should in wind energy development and utilization, increasing investment in efficient and cleaner wind can the pattern of Chinese energy occupies due.