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Aeolon - Model AL91A2 -Wind Turbine Blade
The AL91A2 wind turbine blade, produced by Aeolon Technology Co., Ltd., is characterized by its impressive blade length of 91 meters. Designed to meet IEC S standards, it incorporates advanced materials such as E/H-glass reinforced epoxy, ensuring both strength and durability over a design operational life of 20 years. The blade features a maximum chord length of 4.8 meters and a pre-bending measurement of 6.5 meters, contributing to optimal aerodynamic performance. Engineered for large wind power applications, it operates with a rated power of 5.x MW, utilizing a rotor diameter of 185 meters and a three-blade configuration that supports pitchable and variable-speed power control systems. The operational dynamics include a speed range of 5-10 rpm and a rated tip speed of 87.13 m/s, enhancing the efficiency and effectiveness of power generation. The blade's structural integrity is further reinforced by the use of 128 tension bolts and an outer root diameter of 3310 mm, facilitating robust and secure installation.
Technical data :
- Blade length : 91m
- Design type class : IEC S
- Max. chord length : 4.8m
- Pre-bending : 6.5m
- Pre-cone angle/can be different : 0°
- Mass without T-Bolt : 23.7t
- Mass of T-bolt : 615kg
- Radius center of mass : 25.876m
- Design operation life : 20years
- Material : E/H-glass reinforced Epoxy
Operation Parameter :
- Rated power : 5.x MW
- Rotor Diameter : 185m
- Number of blades : 3
- Power control : Pitchable & Variable-speed
- Speed range : 5-10rpm
- Rated tip speed : 87.13m/s
- Rated rotor speed : 9rpm
- Optimal tip speed ratio : 11.2
- Performance coefficient at TSR-opt : 0.477
Blade Connection :
- Principle : Insert
- Bolt hole circle diameter : 3200mm
- Number, Size of tension bolts : 128xM36X4.0 10.9
- Outer diameter of root : 3310mm

