A wind turbine somewhere has its rotor facing the wind. When the wind speed is 8m/s, the air mass flowing to the rotating area of the blades per second is 7200Kg. The air density in this place is 1.2 Kg/m3. , it is known that kinetic energy is proportional to the mass of air, and the kinetic energy (E) of 1Kg of air at different speeds (v) is as follows:
E(J) 2 8 18 32 50
< p> V(m/s) 2 4 6 8 10(1) When the wind speed is 8 m/s, how many cubic meters of air volume flows to the rotating area of the blade per second?
The kinetic energy of the air flowing to the rotating area of the blades in 1 hour is equivalent to the internal energy generated by how many kilograms of coal are completely burned? (The calorific value of coal is 3.2×107J)
(2) When the wind speed is 10m/s, how many kilograms of air mass flows to the rotating area of the blades in 1 second? If the wind turbine can provide 5.4×104J of energy per second in this case, what is the efficiency of this wind turbine in converting wind energy into electrical energy?
Enterprise products of Wuxi Akoli Chemical Co., Ltd.
1. The company’s R&D center was established in 2006 and became Wuxi Xishan District Engineering Technology R&D Center in 2007. It is currently the Wuxi Engineering Technology R&D Center. The center has five research laboratories with a total area of about 1,700 square meters of various laboratories, including 5 synthesis laboratories, 6 chemical analysis laboratories, 2 sample processing rooms, 1 aging laboratory, and a lamination laboratory. 1, 2 material molding laboratories, and 2 precision instrument laboratories.
2. In 2008, the company's "development and industrialization of epoxy resin for megawatt-level (MW) wind turbine blades" received special funds for the transformation of major scientific and technological achievements in Jiangsu Province.
3. In 2009, the company was approved to establish the "Jiangsu Province Postdoctoral Research Workstation"
4. In 2009, the company will build the "Jiangsu Province Major Science and Technology Transformation Station" in Anzhen, Nantong City, Jiangsu Province The project production base is currently under construction.
5. The company’s independently developed epoxy resin for wind turbine blades has passed GL certification. (Germanischer Lloyd——Germanischer Lloyd Industrial Services Department. Germanischer Lloyd Industrial Services China Department mainly provides certification scope: marine engineering, oil and gas, wind energy system certification).
Is there a manufacturer of wind turbine blades in China?
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Chapter 4 In-depth Research on Core Enterprises of Wind Power Blades 50
4.1 AVIC Huiteng (Vacuum-Assisted Hand Laying, Baoding City, Hebei Province) 50
4.2 Zhongfu Lianzhong (Vacuum Auxiliary in Lianyungang City, Jiangsu Province) 55
4.3 Vestas (2.0MW 850KW in Tianjin, Denmark) 62
4.4 LM (Vacuum Auxiliary in Tianjin, Denmark) 67
4.5 Gamesa (850KW 2.0MW vacuum-assisted Tianjin, Spain) 73
4.6 Shanghai Institute of Glass Technology (Lengguang Industrial 600629 Shanghai vacuum-assisted hand lay-up) 80
4.7 Sinoma Technology (Beijing vacuum assist) 86
4.8 Dongqi Wind Power (Tianjin vacuum assist) 93
4.9 Zhongneng Wind Power (Baoding City, Hebei Province vacuum assist hand lay-up) 98
< p>4.10 Nordex (1.5MW in Yinchuan, Germany) 1064.11 Suzlon (1.25MW in Tianjin, India, 1.5MW vacuum auxiliary) 111
4.12 Guodian United Power (Baoding vacuum auxiliary) 117
p>4.13 Xinfeng Energy (Tianjin Vacuum Auxiliary Hand Laying) 120
4.14 Tianqi Shares (002009 Wuxi Vacuum Auxiliary) 126
4.15 Huayi Wind Power (Baoding, Hebei Province Municipal Vacuum Auxiliary) 130
4.16 Tianwei Wind Power (Baoding Vacuum Auxiliary) 135
4.17 Other wind turbine blade companies 140
4.17.1 Henan Mingdu Wind Power Co., Ltd. Company (1.5MW in Jiaozuo, Henan has been offline) 140
4.17.2 Luoyang Shuangrui Wind Turbine Blade Company (2MW in Luoyang, Henan has been offline) 140
4.17.3Dezhou Century Weineng Wind Power Equipment Co., Ltd. (has been put into operation in Dezhou, Shandong) 141
4.17.4 Siemens Wind Power Blade Company (project under construction in Lingang, Shanghai) 141
4.17.5 Jiuding Wind Power Power generation project (project under construction in Rudong, Jiangsu) 142
4.17.6 Inner Mongolia Aerospace Yijiu Technology Development Co., Ltd. (Inner Mongolia 1.5MW has been offline) 142
4.17.7 Silver Zhongke Yuneng Technology Co., Ltd. (Gansu 1.5MW has been offline) 143
4.17.8 Times New Materials (project under construction in Zhuzhou 600458, Hunan) 143
4.17.9 Aerospace Science and Industry 41 of the Sixth Institute of the Group Company (successfully developed in Hohhot, Inner Mongolia) 144
4.17.10 Harbin Shouquan Wind Power Technology Co., Ltd. (Harbin 1.5MW has been offline) 144
4.17.11 Zhejiang Lianyang Composite Materials Co., Ltd. (Offline in Zhejiang) 145
Most of the core products are 1.5MW blades. After all, the current mainframe is basically 1.5MW too
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