Riblet4WindProject ID: 657652
Finanziato nell'ambito di:
H2020-EU.22.214.171.124. - Develop efficient, reliable and cost-competitive solar energy systems
H2020-EU.126.96.36.199. - Develop geothermal, hydro, marine and other renewable energy options
Riblet-Surfaces for Improvement of Efficiency of Wind Turbines
Dettagli del progetto
Costo totale:EUR 4 031 852,50
Contributo UE:EUR 3 307 171,75
Argomento (i):LCE-03-2014 - Demonstration of renewable electricity and heating/cooling technologies
Invito a presentare proposte:H2020-LCE-2014-2See other projects for this call
Meccanismo di finanziamento:IA - Innovation action
The main objective of Riblet4Wind is the transfer of a technology that has already demonstrated its capacity for increasing the energy efficiency in the aeronautics sector, to the wind energy industry.
Application of functional coatings with riblet structure will improve the drag to lift ratio of rotor blades significantly. Wind tunnel experiments have proven the capability of this riblet-coating technology to increase the efficiency of wind turbines by up to 6%.
This direct effect will allow gaining the same amount of electrical energy with smaller rotor blades. Indirect effects will increase the benefit to approximately more than 10%:
• The improved drag to lift ratio will allow operation at lower wind speeds. The earlier cut-in of the WTG will improve the facility to balance in the electrical grid system.
• The riblet structure improves the stall and turbulence behaviour of the rotor blades thus allowing also operation at higher wind speeds and/or operation in less optimum wind conditions, e.g. changing wind directions or gusts.
• The improved drag to lift ratio will reveal design options due to changes of the design loads.
• The riblet structure will also result in a substantial reduction of noise emissions.
It is expected that the interaction of direct and indirect effects will contribute significantly to the targets of the European Wind Energy Technology Platform (TPWind) as declared in the new Strategic Research Agenda / Market Deployment Strategy (SRA / MDS): a reduction of levelised costs of energy (LCoE) by 20% (onshore) respectively 50% (offshore) until 2028 (LCoE reference 2008).
Beyond the focus of the topic H2020-LCE3-2014 the riblet-paint technology can also be applied on existing rotor blades, thus supporting retrofitting of existing wind turbines and maximising the benefit.
In total Riblet4Wind aims at demonstrating the successful transfer of the riblet-coating technology and the semi-quantitative assessment of the direct and indirect effects.
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