scholarly journals Alternative Composite Materials for Megawatt-Scale Wind Turbine Blades: Design Considerations and Recommended Testing

2003 ◽  
Author(s):  
Dayton A. Griffin ◽  
Thomas D. Ashwill
Keyword(s):  
Composite Materials ◽  
Turbine Blades ◽  
Cost Effective ◽  
Scaling Up ◽  
Structural Performance ◽  
Manufacturing Processes ◽  
Wind Turbine Blades ◽  
Design Considerations ◽  
Structural Configurations ◽  
Hybrid Carbon

As part of the U.S. Department of Energy’s Wind Partnerships for Advanced Component Technologies program, Global Energy Concepts LLC (GEC) is performing a study concerning blades for wind turbines in the multi-megawatt range. Earlier in this project constraints were identified to cost-effective scaling-up of the current commercial blade designs and manufacturing methods, and candidate innovations in composite materials, manufacturing processes and structural configurations were assessed. In the present work, preliminary structural designs are developed for hybrid carbon fiber/fiberglass blades at system ratings of 3.0 and 5.0 megawatts. Structural performance is evaluated for various arrangements of the carbon blade spar. Critical performance aspects of the carbon material and blade structure are discussed. To address the technical uncertainties identified, recommendations are made for new testing of composite coupons and blade sub-structure.

scholarly journals Alternative Composite Materials for Megawatt-Scale Wind Turbine Blades: Design Considerations and Recommended Testing

2003 ◽  
Vol 125 (4) ◽  
pp. 515-521 ◽  
Author(s):  
Dayton A. Griffin ◽  
Thomas D. Ashwill
Keyword(s):  
Composite Materials ◽  
Turbine Blades ◽  
Cost Effective ◽  
Scaling Up ◽  
Structural Performance ◽  
Manufacturing Processes ◽  
Wind Turbine Blades ◽  
Design Considerations ◽  
Structural Configurations ◽  
Hybrid Carbon

As part of the U.S. Department of Energy’s Wind Partnerships for Advanced Component Technologies program, Global Energy Concepts LLC (GEC) is performing a study concerning blades for wind turbines in the multi-megawatt range. Earlier in this project constraints to cost-effective scaling-up of the current commercial blade designs and manufacturing methods were identified, and candidate innovations in composite materials, manufacturing processes and structural configurations were assessed. In the present work, preliminary structural designs are developed for hybrid carbon fiber/fiberglass blades at system ratings of 3.0 and 5.0 MW. Structural performance is evaluated for various arrangements of the carbon blade spar, and critical performance aspects of the carbon material and blade structure are discussed. Recommendations are made for new testing of composite coupons and blade sub-structure to address the technical uncertainties identified in this work.

Alternative Materials, Manufacturing Processes, and Structural Designs for Large Wind Turbine Blades

2002 ◽  
Author(s):  
Dayton A. Griffin
Keyword(s):  
Wind Turbine ◽  
Turbine Blades ◽  
Cost Effective ◽  
Manufacturing Processes ◽  
Wind Turbine Blades ◽  
Cost Weight ◽  
Study Results ◽  
Wide Range ◽  
Structural Configurations ◽  
Self Gravity

As part of the U.S. Department of Energy’s Wind Partnerships for Advanced Component Technologies program, Global Energy Concepts LLC (GEC) has performed a study concerning innovations in materials, processes and structural configurations for application to wind turbine blades in the multi-megawatt range. Constraints to cost-effective scaling-up of the current commercial blade designs and manufacturing methods are identified, including self-gravity loads, transportation, and environmental considerations. A trade-off study is performed to evaluate the incremental changes in blade cost, weight, and stiffness for a wide range of composite materials, fabric types, and manufacturing processes. Fiberglass/carbon hybrid blades are identified as having a promising combination of cost, weight, stiffness and fatigue resistance. Vacuum-assisted resin transfer molding, resin film infusion, and pre-impregnated materials are identified as having benefits in reduced volatile emissions, higher fiber content, and improved laminate quality relative to the baseline wet lay-up process. Alternative structural designs are identified, including jointed configurations to facilitate transportation. Based on the study results, recommendations are developed for further evaluation and testing to verify the predicted material and structural performance.

Use of composite materials and hybrid composites in wind turbine blades

2021 ◽  
Author(s):  
Sri Sai P. Reddy ◽  
Rohan. Suresh ◽  
Hanamantraygouda. M.B. ◽  
B.P. Shivakumar
Keyword(s):  
Composite Materials ◽  
Wind Turbine ◽  
Hybrid Composites ◽  
Turbine Blades ◽  
Wind Turbine Blades

scholarly journals Concepts for Reusing Composite Materials from Decommissioned Wind Turbine Blades in Affordable Housing

Recycling ◽  
2018 ◽  
Vol 3 (1) ◽  
pp. 3 ◽  
Author(s):  
Lawrence Bank ◽  
Franco Arias ◽  
Ardavan Yazdanbakhsh ◽  
T. Gentry ◽  
Tristan Al-Haddad ◽  
...  
Keyword(s):  
Composite Materials ◽  
Wind Turbine ◽  
Affordable Housing ◽  
Turbine Blades ◽  
Wind Turbine Blades

scholarly journals Recycled Glass Fibres from Wind Turbines as a Filler for Poly(Vinyl Chloride)

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Krzysztof Lewandowski ◽  
Katarzyna Skórczewska ◽  
Kazimierz Piszczek ◽  
Włodzimierz Urbaniak
Keyword(s):  
Thermal Stability ◽  
Glass Transition ◽  
Transition Temperature ◽  
Composite Materials ◽  
Glass Transition Temperature ◽  
Impact Strength ◽  
Vinyl Chloride ◽  
Turbine Blades ◽  
Wind Turbine Blades ◽  
Poly Vinyl Chloride

This paper presents the method of using glass fibre with carbon deposit (GFCD), derived from the recycling of wind turbine blades, for production of composite materials based on poly(vinyl chloride) (PVC). Composite materials containing from 1 to 15 wt% of GFCD were produced by plasticising with a plastographometer and then by pressing. The processability and performance were studied. Mechanical properties in static tension, impact strength, and thermal stability were determined. Glass transition temperature was also determined by means of the dynamic mechanical thermal analysis (DMTA). The GFCD percentage of up to 15 wt% was found not to slightly affect the change in the processability, thermal stability, and glass transition temperature. PVC/GFCD composite materials are characterised by a definitely greater elastic modulus with simultaneous decrease of tensile strength and impact strength. An analysis with scanning electron microscopy revealed good adhesion between the filler and the polymer matrix.

scholarly journals High-Resolution Structure-from-Motion for Quantitative Measurement of Leading-Edge Roughness

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3916 ◽  
Author(s):  
Mikkel Schou Nielsen ◽  
Ivan Nikolov ◽  
Emil Krog Kruse ◽  
Jørgen Garnæs ◽  
Claus Brøndgaard Madsen
Keyword(s):  
High Resolution ◽  
Wind Turbine ◽  
Structure From Motion ◽  
Turbine Blades ◽  
Leading Edge ◽  
Cost Effective ◽  
Wind Turbine Blades ◽  
Edge Roughness ◽  
High Resolution Structure ◽  
Resolution Structure

Over time, erosion of the leading edge of wind turbine blades increases the leading-edge roughness (LER). This may reduce the aerodynamic performance of the blade and hence the annual energy production of the wind turbine. As early detection is key for cost-effective maintenance, inspection methods are needed to quantify the LER of the blade. The aim of this proof-of-principle study is to determine whether high-resolution Structure-from-Motion (SfM) has the sufficient resolution and accuracy for quantitative inspection of LER. SfM provides 3D reconstruction of an object geometry using overlapping images of the object acquired with an RGB camera. Using information of the camera positions and orientations, absolute scale of the reconstruction can be achieved. Combined with a UAV platform, SfM has the potential for remote blade inspections with a reduced downtime. The tip of a decommissioned blade with an artificially enhanced erosion was used for the measurements. For validation, replica molding was used to transfer areas-of-interest to the lab for reference measurements using confocal microscopy. The SfM reconstruction resulted in a spatial resolution of 1 mm as well as a sub-mm accuracy in both the RMS surface roughness and the size of topographic features. In conclusion, high-resolution SfM demonstrated a successful quantitative reconstruction of LER.

Sign in / Sign up

Export Citation Format

Share Document