Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Jet engines to become cleaner in future

26.02.2016

Thanks to a close collaboration between the Swiss Federal Laboratories for Materials Science and Technology (Empa), SR Technics and the Federal Office of Civil Aviation (FOCA), Switzerland is setting an international benchmark by developing a method for measuring emissions of fine particulate matter from aircraft engines. The Committee on Aviation Environmental Protection of the International Civil Aviation Organization (ICAO) recently approved a preliminary standard governing the emission of particulates by aircraft engines.

Since the 1980s, large aircraft engines have been required to meet emission limits that have been gradually tightened over time.


Aircraft engines emit soot.

Picture: Charlie Atterbury, Seattle

Air traffic, therefore, contributes relatively little to Switzerland's pollution levels, and visible smoke trails in the sky from jet engines are a thing of the past. However, no-one has yet found a solution to the emission of ultra-fine particles from jet engines.

These microscopically small particles can penetrate deep into the lungs and thus adversely affect health. As a precautionary measure, these emissions from air traffic will now also be measured, regulated and reduced, even though air traffic produces less than 1 percent of Switzerland's fine particulate emissions.

From a technical standpoint, measuring ultra-fine combustion particles is extremely complex. As part of a close collaboration between Empa, SR Technics and FOCA experts have spent years developing a standard test setup and method that can be used to measure fine particulate emissions from aircraft engines.

Both the measuring system and the corresponding instruments were tested by way of international cam-paigns until they were considered ready for deployment. The measuring system gives the mass of the particulate matter as well as the number of particles emitted per liter of fuel. It even captures the smallest particles with diameters of less than a hundred-thousandth of a millimeter.

The work on this new global standard was led by FOCA in partnership with the US aviation authority. On 2 February in Montreal, the ICAO's Committee on Aviation Environmental Protection approved the new standard, which relies heavily on contributions by FOCA, SR Technics and Empa. Final approval of the standard is expected by the ICAO Council in one year.

All engine types for passenger aircraft that are in production as of 1 January 2020 must be certified in accordance with the new standard. Most engine manufacturers have already developed their own measuring systems that comply with the standard and have started re-measuring their engines. Technologies are also emerging that will further reduce the emission of fine particulates.

Weitere Informationen:

http://www.empa.ch/web/s604/empairex-exhaust-jet

Cornelia Zogg | Empa - Eidgenössische Materialprüfungs- und Forschungsanstalt

More articles from Power and Electrical Engineering:

nachricht Fraunhofer ISE Supports Market Development of Solar Thermal Power Plants in the MENA Region
21.02.2018 | Fraunhofer-Institut für Solare Energiesysteme ISE

nachricht New tech for commercial Lithium-ion batteries finds they can be charged 5 times fast
20.02.2018 | University of Warwick

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: Developing reliable quantum computers

International research team makes important step on the path to solving certification problems

Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...

Im Focus: In best circles: First integrated circuit from self-assembled polymer

For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.

In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...

Im Focus: Demonstration of a single molecule piezoelectric effect

Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale

Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...

Im Focus: Hybrid optics bring color imaging using ultrathin metalenses into focus

For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.

But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...

Im Focus: Stem cell divisions in the adult brain seen for the first time

Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.

The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

2nd International Conference on High Temperature Shape Memory Alloys (HTSMAs)

15.02.2018 | Event News

Aachen DC Grid Summit 2018

13.02.2018 | Event News

How Global Climate Policy Can Learn from the Energy Transition

12.02.2018 | Event News

 
Latest News

Stiffness matters

22.02.2018 | Life Sciences

Magnetic field traces gas and dust swirling around supermassive black hole

22.02.2018 | Physics and Astronomy

First evidence of surprising ocean warming around Galápagos corals

22.02.2018 | Earth Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>