Supplier Spotlight

Video Exclusives

Space Launch System - in numbers

Discover how engineers are outfitting the world’s most powerful rocket with sensors, cables and other equipment in this 2:40 video.

Click here to watch video

15 May, 2018



Blue Origin launches and lands New Shepard rocket

Watch Amazon founder Jeff Bezos' space tourism company Blue Origin successfully launch and land a used rocket and capsule.

Click here to watch video

02 May, 2018



 

To watch more videos, click here

Your partner goes to the shop, but while at the counter gets confused. They swap the number for feet with the number for inches and buy the wrong length of ribbon. When they return home, you measure the ribbon and realise it's just 5/8 of the length that was required. Can you calculate the length of the ribbon that was requested?

News

DLR and Lufthansa Technik investigate biofuels in new study

Biofuels have the potential to make air transport more climate friendly and reduce dependency on fossil raw materials, since they are produced using renewable raw materials, such as oil plants, grain, algae and wood.

Researchers at the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt –  DLR), together with Lufthansa Technik and the Bundeswehr Research Institute for Materials, Fuels and Lubricants, investigated the chemical and physical properties of particularly promising biofuels. The European Union-funded High Biofuel Blends in Aviation (HBBA) study focused on blends (that is, mixtures of conventional kerosene with biofuels). The study analyzed particularly promising biofuels, according to source, production process and approval status.

An aircraft turbine can cost up to several million euros and should it be operated using non-certified fuel for research purposes, for example, it may not be reinstalled in an aircraft. This means that bridging the gap between laboratory tests and implementation in an aircraft represents a huge challenge for researchers.

Scientists at the DLR Institute of Combustion Technology now can investigate biofuels on a special test rig at Lufthansa Technik in Hamburg, where an aero turbine engine is available for research purposes.

"The test engine – a CFM56, used in Airbus and Boeing medium-haul aircraft, for example – is suspended from the ceiling in a hangar. The exhaust gas stream enters a large tunnel behind the engine, where we installed our measuring probes to take samples,” said DLR researcher Markus Köhler.

“A significant challenge here is stability of the probes under these extreme conditions so that they do not simply snap or bend. The laboratory analyses already showed that biofuels are well suited for use in aero-engines. Testing this under real-life test conditions, however, takes on an entirely different dimension.”

Scientists have examined three different fuels: pure biofuel; a blend of 50/50 biofuel and conventional fuel; and conventional kerosene as a reference.

"This large-scale test showed that the use of blends can improve the carbon footprint in the field of aviation without causing any problems in the engine," stated Köhler. "Furthermore, with biofuels, we see the potential to reduce the emissions of pollutants in the future."

For this reason, the subject is increasingly attracting interest from airlines, aircraft manufacturers, airport operators and local residents.

The certification of a completely new fuel is an extremely elaborate and lengthy process. Blends of biofuels and conventional kerosene represent an important intermediate stage – some of their properties correspond to those of normal kerosene, which means that not all parameters required for the combustion process have to be completely re-examined.

They are also an important step toward so-called designer fuels. Such fuels are composed in such a way that their properties are as optimal as possible in terms of environmental friendliness and technical characteristics. Research in this field is a major focus for the DLR Institute of Combustion Technology.

June 14, 2017

Written by Michael Jones


RECEIVE THE
LATEST NEWS


Your email address:



Read Latest Issue

Read Latest Issue

Web Exclusives

Experts from AMETEK Power provide an update on the latest globally-applied standards for testing avionics equipment under extreme power conditions  
Click here to read more

A³ has been tasked by Airbus to find the next big thing in the aerospace sector in Silicon Valley. Aerospace Testing International talked to its senior management about their approach to development and their vision for the future of the sector.
Click here to read more

Boeing’s chief test pilot in the UK, Rich Pillans, talks about running the company’s first test and evaluation center outside of the USA and why it pays to keep a clear head during flight tests
Click here to read more

Being stuck inside a spacesuit for six days is just one of the extremes NASA is addressing as it looks to a new age of space exploration
Click here to read more

Thales Alenia Space has partnered with Siemens to develop new tools and methods for acoustic testing
Click here to read more


Supplier Spotlight

Supplier SpotlightClick here for listings and information on leading suppliers covering all aspects of the aerospace testing industry. Want to see your company included? Contact tom.eames@ukimediaevents.com for more details.

Submit your industry opinion

Industry BlogDo you have an opinion you'd like to share with the aerospace testing community? Good or bad, we'd like to hear your views and opinions on the leading issues shaping the industry. Share your comments by sending up to 500 words to anthony.james@ukimediaevents.com

Submit Your Recruitment Ad

Recruitment AdTo send us your recruitment advertising or to receive information on placing a banner please email ben.sampson@ukimediaevents.com