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Wind Turbine Airfoils and Blades Optimization Design Theory
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Price: US$ 69.00
Wind Turbine Airfoils and Blades Optimization Design Theory
Language:  English
Author:  Jin Chen
Pub. Date:  2018-01 Weight:  0.6 kg ISBN:  9787030548535
Format:  Hardcover Pages:  392
Subject:  Technology > Machinery
Series:   Size:  234 x 165 mm
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1 Introduction
1.1 Introduction
As a kind of clean and renewable energy, wind energy is inexhaustible and is attracting increasing attention from all over the world. Of the global wind energy reserves, 2 × 107 MW are available from the whole 2.74 × 109 MW, which is 10 times more than can be extracted from exploitable water resources. Wind energy is abundant in China, with the energy on land amounting to 2.53 × 105 MW.
With innovations in wind turbine theories, the application of new materials andthe development of manufacturing technologies, wind power technology is continuouslyimproving, with unit capacity increasing from the 10-kilowatt scale to themulti-megawatt (MW) scale. The average unit capacity of wind turbines has increasedto twenty times that of twenty years ago. Before 2008, large-scale wind turbine manufacturingproduced only few products. German Repower manufactured the first 5 MWprototype in 2004. German Enercon has recently developed the second generationof 6 MW direct-drive wind turbines whose diameter is increased to 127 m from 112 m(4.5 MW). In recent years, more and more companies have started to design and developlarge-scale wind turbines. Danish Vestas is developing the 4 MW-Micon offshorewind turbine. Spanish Gamesa has developed a 4.5–5 MW model. German BARD hasdeveloped a 5 MW wind turbine series and three have been installed on land andoffshore. In 2009, BARD announced that it would start developing 6.5 MW wind turbines.Siemens has completed testing a 3.6 MW direct-drive conception wind turbine.Dutch Darwind is developing a 5 MW direct-drive wind turbine. American Clipper isgoing to cooperate with Britain to develop 7.5 MW and 10 MW units. AMSC, which iscooperating with the US Department of Energy, plans to manufacture a 10 MW unitwith superconducting generators. So the large-scale wind turbine is becoming themainstream of future market development and applications. Meanwhile, prompted bythe large-scale developments in international wind industries, Chinese wind energycompanies have also become involved in the fierce competition among large-scale windturbines. In 2009, China made a breakthrough in research and manufacturing MW-scalewind turbines. For example, a 3 MW wind power unit developed by Shenyang IndustrialUniversity has been successfully manufactured. 2.5 MW and 3 MW wind turbine unitsdeveloped by Goldwind have been put into trial operation in a wind farm [2, 3]. The6 MW offshore wind turbine unit developed by Sinovel in 2011 has been successfullymanufactured. And the 6 MW offshore wind turbine developed by National Power hasalso finished development and tests. In addition, Goldwind, DEC, Haizhuang, XEMCand so others are developing or have developed wind turbines whose capacity exceeds5 MW, indicating that research and manufacturing of large-scale wind turbines in Chinahas stepped into a new era.
Although the development of the global wind industry has, to some extent, been affected by the global economic crisis in recent years, newly installed capacity is still on the increase. According to statistics from the Global Wind Energy Council (GWEC), after the slower rate of increase of wind power in 2010, in 2011 the newly installed capacity globally amounted to 40 564 MW, which represented annual growth of more than 20 % [2]. Compared with capacity installed in 2010 of 18.94 GW, the annual capacity installed in China decreased in 2011 by 6.9 % to 17.63 GW. After rapid growth, the Chinese wind power market is entering a period of steady development. By the end of 2011, the Chinese wind market, with 45 894 wind turbines installed annually and capacity of 62.36 GW, continues to be the largest worldwide. The capacity installed annually in China since 2001 is shown in Fig. 1.1.
Fig. 1.1: Development of wind power in China.
During the years 2005–2010, many companies from abroad with great strength sought potential partners in China. For example, American GE and Danish Vestas have set up factories or cooperated with Chinese enterprises. Although Chinese enterprises have achieved initial successes. improved technologies and produced many wind power products, the core technologies of wind power are almost all controlled by large international companies. The blade is one of the most crucial parts of a wind turbine and its value amounts to 20 % of that of the whole wind turbine. Good design, reliable quality and superior performance are the decisive factors to ensure normal and stable operation of wind turbines.
1.2 The research in China and worldwide
The design theories for wind turbine airfoils and aerodynamic blade shapes are the decisive factors in wind turbine power performance and aerodynamic load characteristics. Structural design of composite blades is the crucial factor affecting stiffness characteristics of blades. Blade aeroelastic complex multidisciplinary coupling and collaborative method are used to investigate the aerodynamic performan 





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