Cost Effective Large Blade Components by Using Carbon Fibers

Joosse, P. A.; Delft, D.R.V. van; Kensche, C.; Soendergaard, D.; Berg, R.M. van den; Hagg, F.

doi:10.1115/1.1510526

Cited by 13 publications

(13 citation statements)

References 2 publications

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“…In a European research effort, carbon fiber composites were investigated for potential improvements in blade weight and cost [1][2][3][4]. Under the Global Energy Concepts, LLC (GEC)/Sandia Blade System Design Study, carbon fiber material was identified as cost effective for use in the load bearing spar structure [5,6].…”

Section: Introductionmentioning

confidence: 99%

Design of 9-meter carbon-fiberglass prototype blades : CX-100 and TX-100 : final project report.

Berry¹

2007

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TPI Composites, Inc. (TPI), Global Energy Concepts, LLC (GEC), and MDZ Consulting (MDZ) have collaborated on a project to design, manufacture, and test prototype carbon-fiberglass hybrid wind turbine blades of 9-m length. The project, funded by Sandia National Laboratories, involves prototype blades in both conventional (unidirectional spar fibers running along the blade span) and "adaptive" (carbon fibers in off-axis orientation to achieve bend-twist-coupling) configurations. After manufacture, laboratory testing is being conducted to determine the static and fatigue strength of the prototypes, in conjunction with field testing to evaluate the performance under operational conditions.

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Section: Introductionmentioning

confidence: 99%

Design of 9-meter carbon-fiberglass prototype blades : CX-100 and TX-100 : final project report.

Berry¹

2007

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“…Therefore, the strain data for compression was calculated by MSU based on the measured (constant) value of the tensile modulus. In both tension and compression, the single-cycle strain values (Table 5- 6) showed only modest variation between the epoxy and VE resins. The single-cycle tensile strain was higher than the static value measured at Intec (Table 5- 5), and the compressive single-cycle strains were lower than the corresponding static measurements.…”

Section: Infused Fiberglass Fatigue Resultsmentioning

confidence: 98%

“…These growth trends have been accompanied by extensive research and development efforts in the blade manufacturing industry. In addition, government-funded programs in both Europe [2][3][4][5][6] and the United States [7][8][9] have been investigating alternative blade design and material technologies. Technical challenges include restraining weight growth, enabling larger rotors by increased stiffness, improving power performance, mitigating loads, facilitating transportation, and designing for fatigue cycles on the order of 10 7 .…”

Section: Introductionmentioning

confidence: 99%

Blade System Design Study. Part II, final project report (GEC).

Griffin

2009

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As part of the U.S. Department of Energy's Low Wind Speed Turbine program, Global Energy Concepts LLC (GEC) 1 has studied alternative composite materials for wind turbine blades in the multi-megawatt size range. This work in one of the Blade System Design Studies (BSDS) funded through Sandia National Laboratories. The BSDS program was conducted in two phases. In the Part I BSDS, GEC assessed candidate innovations in composite materials, manufacturing processes, and structural configurations. GEC also made recommendations for testing composite coupons, details, assemblies, and blade substructures to be carried out in the Part II study (BSDS-II). The BSDS-II contract period began in May 2003, and testing was initiated in June 2004.

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“…An important method to increase the operational wind turbine efficiency is to increase the blade length [ 11 , 12 , 13 , 14 , 15 ]. This is even more important for off-shore turbines, which tend to be larger than on-shore turbines [ 16 , 17 , 18 ]. Most wind turbine blades consist of a spar flange and shear webs that are covered by an aerofoil (see Figure 2 ), all of which are typically made of glass fibre composites [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Perspective for Fibre-Hybrid Composites in Wind Energy Applications

Swolfs

2017

Materials

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Increasing the efficiency of wind turbines will be vital for the wind energy sector to continue growing. The drive for increased efficiency is pushing turbine manufacturers to shift from glass fibre composite blades towards carbon/glass fibre-hybrid composite blades. This shift brings significant challenges in terms of optimising the design and understanding the failure of these new blade materials. This review therefore surveys the literature on fibre-hybrid composites, with an emphasis on aspects that are relevant for turbine blade materials. The literature on tensile, flexural, compressive, and fatigue performance is critically assessed and areas for future research are identified. Numerical simulations of fibre-hybrid composites have reached a reasonable maturity for tensile failure, but significant progress is required for flexural, compressive, and fatigue failure. Fatigue failure of fibre-hybrid composites in particular, requires more careful attention from both a modelling and experimental point of view.

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Cost Effective Large Blade Components by Using Carbon Fibers

Cited by 13 publications

References 2 publications

Design of 9-meter carbon-fiberglass prototype blades : CX-100 and TX-100 : final project report.

Design of 9-meter carbon-fiberglass prototype blades : CX-100 and TX-100 : final project report.

Blade System Design Study. Part II, final project report (GEC).

Perspective for Fibre-Hybrid Composites in Wind Energy Applications

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