Coordinatore | EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZURICH
Organization address
address: Raemistrasse 101 contact info |
Nazionalità Coordinatore | Switzerland [CH] |
Totale costo | 192˙622 € |
EC contributo | 192˙622 € |
Programma | FP7-PEOPLE
Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) |
Code Call | FP7-PEOPLE-2011-IEF |
Funding Scheme | MC-IEF |
Anno di inizio | 2012 |
Periodo (anno-mese-giorno) | 2012-09-01 - 2014-11-30 |
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EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZURICH
Organization address
address: Raemistrasse 101 contact info |
CH (ZUERICH) | coordinator | 192˙622.20 |
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'Icing on structures represents a severe risk for human safety and has a significant economic impact on operation costs in many different areas such as aeronautics, power systems (e.g. wind turbines and electric power transmission lines), civil construction (e.g. bridges) and oil platforms to name a few. US National Transportation Safety Board (NTSB) estimates that each year there are about 30 icing related accidents in aeronautics in the US alone. Although icing research has a long tradition, there is a need to investigate the fundamental mechanisms of ice accretion, to improve the prediction of ice accumulation due to supercooled drops and ice crystals, which can adhere to cold surfaces and cause ice accumulation, and to develop effective ice protection systems. Impact of supercooled drops and ice crystals is particularly relevant to icing in severe icing conditions such as the ones with high degree of supercooling. The new proposed standards from Federal Aviation Administration published in June 2010 also recognize this as a very important problem. Therefore, the aim of the proposed project is to advance the fundamental science base on the dynamics and the phase change phenomena in severely supercooled drops and ice crystals interacting with surfaces and to define a new norm for icephobicity. Carefully designed supercooled drop and ice crystal impact experiments on solid surfaces with different texture and wettability are proposed as a means to develop the required understanding of ice adhesion. Through optimal choice of surface properties and results of impact experiments, the project will focus on developing so called icephobic surfaces, which should form the basis for a highly promising coating strategy to combat ice accumulation on surfaces by minimizing ice adhesion and increase the efficiency of present anti-icing systems.'
Researchers have developed new nanoparticle surface treatments to prevent ice formation. Their work has improved our understanding of how icing of surfaces occurs.
Icing on structures represents a safety risk to humans working with aeronautic equipment, power systems and oil platforms. Despite this common danger, there is a need to better understand ice accretion and formation in order to develop technological solutions.
The EU-funded ICE^2 (Icephobicity for severe icing environments) project addressed this by investigating the basic science behind supercooled drops interacting with surfaces. The project also tested new surfaces that are ice resistant.
A major part of this project relied on new equipment and techniques. A state-of-the art apparatus for studying supercooled liquids was developed, which included an acoustic levitation system to handle drops without touching them.
ICE^2 found that the viscosity of the drop played an important role in how the cold liquid interacted with the surface. They also looked at how drops behaved differently on impact with different surfaces.
Finally, researchers developed micro- and nano-engineered coatings to test how ice crystals formed on these surfaces. Combined with a textured aluminium base, these coatings could be useful as next-generation anti-icing surfaces.
The work of ICE^2 could ultimately save lives by preventing or limiting ice formation on exposed surfaces.