Request A Quote
Request A Quote
Company News
Position: Home > News > Company News

What is the key point of the best wind turbine blades?

DATE:2022-11-15
Read:
Share:
To manufacture the optimal wind turbine blades, the speed ratio, TSR, which is defined as the ratio of the speed of the rotor tip to the wind speed, depends on the rotor blade shape profile, the number of turbine blades, and the wind turbine propeller blade design itself.
Generally, wind turbine blades are shaped to generate the maximum power from the wind at the minimum construction cost. But wind turbine blade manufacturers are always looking to develop a more efficient blade design. Constant improvements in the design of wind blades has produced new wind turbine designs which are more compact, quieter and are capable of generating more power from less wind. Its believed that by slightly curving the turbine blade, they’re able to capture 5 to 10 percent more wind energy and operate more efficiently in areas that have typically lower wind speeds. Therefore, the grinding tools takes a very important role in wind turbine blades manufacturing process.

What material is used for wind turbine blade?
Materials commonly used in wind turbine blades are described below.

Glass and carbon fibers
The stiffness of composites is determined by the stiffness of fibers and their volume content. Typically, E-glass fibers are used as main reinforcement in the composites. Typically, the glass/epoxy composites for wind turbine blades contain up to 75% glass by weight. This increases the stiffness, tensile and compression strength. A promising composite material is glass fiber with modified compositions like S-glass, R-glass etc. Other glass fibers developed by Owens Corning are ECRGLAS, Advantex and WindStrand.
Carbon fiber has more tensile strength, higher stiffness and lower density than glass fiber. An ideal candidate for these properties is the spar cap, a structural element of a blade which experiences high tensile loading. A 100-metre (330 ft) glass fiber blade could weigh up to 50 tonnes (110,000 lb), while using carbon fiber in the spar saves 20% to 30% weight, about 15 tonnes (33,000 lb). However, because carbon fiber is ten times more expensive, glass fiber is still dominant.

Hybrid reinforcements
Instead of making wind turbine blade reinforcements from pure glass or pure carbon, hybrid designs trade weight for cost. For example, for an 8-metre (26 ft) blade, a full replacement by carbon fiber would save 80% of weight but increase costs by 150%, while a 30% replacement would save 50% of weight and increase costs by 90%. Hybrid reinforcement materials include E-glass/carbon, E-glass/aramid. The current longest blade by LM Wind Power is made of carbon/glass hybrid composites. More research is needed about the optimal composition of materials

Nano-engineered polymers and composites
Additions of small amount (0.5 weight %) of nanoreinforcement (carbon nanotubes or nanoclay) in the polymer matrix of composites, fiber sizing or interlaminar layers can improve fatigue resistance, shear or compressive strength, and fracture toughness of the composites by 30% to 80%. Research has also shown that incorporating small amounts of carbon nanotubes (CNT) can increase the lifetime up to 1500%.
No matter of the material or shape of the blades, Electroplated Diamond Grinding Tool is the best choice for manufacturing wind turbine blades. Zhongbang supply the tailored solution for wind turbine blades manufacturer.
 
TAGS:
RELATED NEWS
grinding wheel product x-series
Related products
Grinding disc for brake pad

Grinding disc for brake pad

This series of products are used in friction material area, for inner&outer arc grinding, surface grinding, chamfering grinding and grooving of drum brake pads and disk brake pads.
Diameter:
Customizable
Diameter:
Customizable
Diameter:
Customizable
for robot polishing

Diamond grinding head

Used for the cleaning of the trimming, rag, burr, joint line, and the casting head of the small and medium workpiece.
Diameter:
Customizable
Diameter:
Customizable
Diameter:
Customizable
Diamond Grinding Wheel Cutting Blade Disc Grinder For Porcelain Tile Granite Marble Cutter Sharpener Tool Accessories Cutting Disc

Diamond Saw Blade

This product is used for the grinding and polishing of the composite material. Material processed includes synthetic resin, rubber, ceramic, graphite, carbon, glass fiber, carbon fiber, boron fiber, aramid fiber, silicon carbide fiber, asbestos fiber, glass steel, stone, ceramic, crystal etc.
Diameter:
Customizable
Diameter:
Customizable
Diameter:
Customizable
Want to know more? Please leave your contact information
Request a Quote
*Your Name:
*Your Email:
Telephone:
Country:
*Message: