Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Fraunhofer IFAM is developing de-icing technologies for aircraft with European and Japanese partners

14.06.2013
The experts of Paint/Lacquer Technology at the Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM in Bremen are currently developing novel de-icing technologies for the next generation of aircraft.

This work is being undertaken in an international project with European and Japanese partners. The objective is to develop an integrated system comprising three synergistic components: Active de-icing technology, functional coatings which assist the de-icing function, and sensor technology which not only monitors the icing in real-time but also the de-icing.


Schematic representation of the Fraunhofer IFAM wind tunnel in which icing tests under realistic conditions will be carried out in the future. (© Fraunhofer IFAM)

The surfaces of aircraft are prone to icing during flights due to the fact that they are exposed to extremely low temperatures (down to -50 degrees Celsius at altitudes of up to 10,000 meters) and also water in the atmosphere, for example in clouds and precipitation.

The formation of ice, particularly on the wings, can lead to enormous problems due to its adverse effect on the aerodynamics and due to its weight. Besides causing higher fuel consumption and greater CO2 emissions, the ice is also a risk to the safety of an aircraft: e. g. for 1998 to 2007, the Federal Aviation Administration (FAA) in the USA recorded in its database a total of 886 incidents related to icing (G. L. Dillingham, AVIATION SAFETY – Preliminary Information on Aircraft Icing and Winter Operations. United States Government Accountability Office. Testimony before the Subcommittee on Aviation, Committee on Transportation and Infrastructure, House of Representatives (GAO-10-441T, February 2010)).

For this reason, an enormous amount of work is current being undertaken on the early detection of ice formation, the suppression of ice formation, and the removal of any ice. For example, waste heat from the engines is being utilized to heat the front edges of the wings. Other de-icing systems are based on mechanical ice removal using so-called "rubber boots". These rubber boots have air chambers which can be pumped up when needed to remove the ice from the surface.

The JEDI ACE (Japanese-European De-Icing Aircraft Collaborative Exploration) project, which was started in November 2012, aims to develop a multicomponent de-icing system suitable for the next generation of aircraft that are being built using, amongst other things, lightweight carbon fiber reinforced plastics (CFRPs). The focus here is on safety and efficiency aspects. "The new system will require considerably less energy than current system, due to the combination of innovative de-icing technologies and real-time sensors, and will decrease the number of icing-related in-flight incidents by up to 80 percent", says Gerhard Pauly of the Fraunhofer IFAM who is managing the international project.

Fraunhofer IFAM researchers are involved with the development of coatings and testing the icing properties of the surfaces. These coatings will assist the current de-icing technologies that are based on thermal and/or mechanical principles, by reducing the adhesion of the ice and so making its removal easier. As such, the efficiency of overall de-icing will be significantly improved. "The challenge is to ensure that the coatings remain effective for several years despite the high stress on the aircraft caused by, amongst other things, erosion and UV radiation and we are at present developing coating systems that have this long-term stability", explains coating expert Nadine Rehfeld of the Fraunhofer IFAM who is the scientific leader of the international project. In addition, the suitability of so-called "shape memory materials" as mechanical actuators is being studied which – when incorporated into a coating – allow ice removal by changing the surface profile. The first results on this were presented at a project meeting in Tokyo in May 2013 attended by a number of project partners: Dassault Aviation (France), University Rovira i Virgili/Centre for University Studies in Aviation (Spain), Fuji Heavy Industries Aerospace Company (Japan), Japan Aerospace Exploration Agency (Japan), and Kanagawa Institute of Technology (Japan). The next phase of the project work was also discussed at this meeting.

Another project goal within JEDI ACE is the construction of a wind tunnel by scientists from the Fraunhofer IFAM. This will enable newly developed de-icing systems to be tested under icing conditions. "Temperatures of -30 degrees Celsius and wind speeds of up to 350 kilometers per hour will be able to be attained in this tunnel. This will allow us to simulate real conditions, including with supercooled water which is also present in liquid form at temperatures below 0 degrees Celsius", explains Nadine Rehfeld.

The project is being funded by the European Commission and the Japanese Ministry of Economy, Trade and Industry (METI). The Fraunhofer IFAM is leading the scientific work and coordinating the project.

Partners of the Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM in the JEDI ACE project are
• Dassault Aviation (France)
• University Rovira i Virgili/Centre for University Studies in Aviation (Spain)
• Fuji Heavy Industries Aerospace Company (Japan)
• Japan Aerospace Exploration Agency (Japan)
• Kanagawa Institute of Technology (Japan)

Contact
Paris Air Show Le Bourget 2013 I 17 to 23 June 2013 I Paris I France
Hall 1 I Booth G 316
Gerhard Pauly I Michael Wolf

Anne-Grete Becker | Fraunhofer-Institut
Further information:
http://www.ifam.fraunhofer.de

More articles from Materials Sciences:

nachricht Watching atoms move in hybrid perovskite crystals reveals clues to improving solar cells
22.11.2017 | University of California - San Diego

nachricht Fine felted nanotubes: CAU research team develops new composite material made of carbon nanotubes
22.11.2017 | Christian-Albrechts-Universität zu Kiel

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Frictional Heat Powers Hydrothermal Activity on Enceladus

Computer simulation shows how the icy moon heats water in a porous rock core

Heat from the friction of rocks caused by tidal forces could be the “engine” for the hydrothermal activity on Saturn's moon Enceladus. This presupposes that...

Im Focus: Nanoparticles help with malaria diagnosis – new rapid test in development

The WHO reports an estimated 429,000 malaria deaths each year. The disease mostly affects tropical and subtropical regions and in particular the African continent. The Fraunhofer Institute for Silicate Research ISC teamed up with the Fraunhofer Institute for Molecular Biology and Applied Ecology IME and the Institute of Tropical Medicine at the University of Tübingen for a new test method to detect malaria parasites in blood. The idea of the research project “NanoFRET” is to develop a highly sensitive and reliable rapid diagnostic test so that patient treatment can begin as early as possible.

Malaria is caused by parasites transmitted by mosquito bite. The most dangerous form of malaria is malaria tropica. Left untreated, it is fatal in most cases....

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

Underwater acoustic localization of marine mammals and vehicles

23.11.2017 | Information Technology

Enhancing the quantum sensing capabilities of diamond

23.11.2017 | Physics and Astronomy

Meadows beat out shrubs when it comes to storing carbon

23.11.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>