Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New experimental research facility to identify the weakest points of wind turbine blades

21.11.2008
On 25 November a new research facility at Risø DTU will be inaugurated. Here, scientists will be able to experiment with different physical loads on wind turbine blades, corresponding exactly to what the wind does to the blades during a lifetime. The advanced measurements will make it possible to work more focused on design and structure, thus contributing to the development of larger and stronger blades.

With the explosive growth within wind energy and several turbines with blades of 60 meters or more, there is a greater need for research into the design and structure of blades. If you just upgrade the blades without simultaneously optimizing them, the weight will increase faster than the wind turbine performance.

The huge blades get relatively very heavy and therefore uneconomic if you only improve their strength by adding more material. Therefore the scientists are now working with other forms of reinforcement, for example, change of structure and support of the blade precisely where it is weakest.

"By using the latest knowledge and reinforcing the blades, we expect that the weight of tomorrow's blades can be reduced substantially," says Find Mølholt Jensen who is head of the new research test facility. Find Mølholt's PhD thesis focused on this issue, and based on his inventions Risø DTU has patented several reinforcements. One of the inventions, for instance, has proved to increase buckling strength by 30-40 percent. The implementation in the manufacturing process still remains, but Risø DTU hopes that this can be solved together with the manufactures.

Experimental Research Facility for Blade Structure
There is room for a 30-40 meter wind turbine blade in the big hall which now opens with the name Experimental Research Facility for Blade Structure. SSP Technology A/S has donated a 34m blade and the blade has been mounted with different kinds of measuring equipment, which differ significantly from the way traditionally commercial tests are performed today. 3D measuring equipment is funded by DTU globalization funds based on a joint application from Risø DTU, DTU Mechanical Engineering and DTU Civil Engineering.

The many tests and measurements are going to be used to validate seven patents on various structural reinforcements which have been taken out by Risø DTU during the past 3-5 years. They will also make it possible to evaluate and improve the methods which are being used to approve wind turbine blades

The official inauguration will be the festive end of Wind Day 2008 held by the Danish Research Consortium for Wind Energy. Director Henrik Bindslev will be present and there will be lectures on research into blade design.

Hanne Krogh | alfa
Further information:
http://www.risoe.dtu.dk/
http://www.risoe.dtu.dk/News_archives/News/2008/2011_indvielse_vingetestcenter.aspx?sc_lang=en

More articles from Power and Electrical Engineering:

nachricht Silicon solar cell of ISFH yields 25% efficiency with passivating POLO contacts
08.12.2016 | Institut für Solarenergieforschung GmbH

nachricht Robot on demand: Mobile machining of aircraft components with high precision
06.12.2016 | Fraunhofer IFAM

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Electron highway inside crystal

Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.

Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Researchers identify potentially druggable mutant p53 proteins that promote cancer growth

09.12.2016 | Life Sciences

Scientists produce a new roadmap for guiding development & conservation in the Amazon

09.12.2016 | Ecology, The Environment and Conservation

Satellites, airport visibility readings shed light on troops' exposure to air pollution

09.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>