Objective
OBJECTIVES OF THE PROJECT
Large wind turbines are expected to be more cost effective and have a higher efficiency. For these turbines low weight, stiff blades are preferred with thin, high lift airfoils. Stiff light-weight blades can be accomplished when carbon fibre reinforced plastics are used. Present material knowledge and usage and production methods result in relative expensive blades. The aim of the project is to enable the economical use of carbon fibres reinforced plastics (CFRP) by establishing material design data and suitable production and joint techniques.
TECHNICAL APPROACH
The following activities take place:
- establishment of CFRP material design data
Material design values are established after selecting optimal 'wind turbine' laminates. Special attention will be given to increase the relatively low compressive strength.
- development of a cost-effective blade root joint
Durable blade root connections will be developed, based on existing joint types, produced and tested.
- evaluation of production methods
Existing CFRP manufacturing techniques are reviewed leading to recommendations and followed by pilot production of a re-designed tip shaft.. - assessment of blade and turbine costs
The influence of the amount of CFRP on the tip deflection and a cost assessment of the rotor costs and turbine costs for a hybrid or full carbon blade will be given.
With the above the potential of large CFRP rotors will be evaluated in terms of performance and costs with reference to glass reinforced blades.
EXPECTED ACHIEVEMENTS AND EXPLOITATION
Due to an optimised manufacturing method for large blades, high quality blades can be produced with improved (compressive) strength. The establishment of material design data will enable higher material strength; together with improved structural joints this will result in light-weight, cost-effective carbon fibre reinforced rotor blades.
Blade costs of the hybrid blade are expected to become 125% of full-glass blades. For off-shore turbines this cost increase is expected to be counter-balanced by higher energy output. In the optimistic case of comparable tensile and compressive strength of the material, the blade cost of the hybrid blade will be similar as a full-glass blade. This would enable the use of hybrid material for conventional blades.
The involved blade manufacturers intend to review the project results for their next generation of rotor blades. In view of the number of blade manufacturers and their position on the European market it can be expected that wind turbine manufacturers will adopt the CFRP blade as a de-facto standard.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- engineering and technology environmental engineering energy and fuels renewable energy wind energy
- engineering and technology materials engineering amorphous solids
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Programme(s)
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
1000 AJ AMSTERDAM
Netherlands
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.