An Engineering Office for Advanced Combustion Management

S3R: Safe, Smooth, Smart & Reliable Ignition

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Published on Monday, 24 February 2020 07:33

If Billy Joel did not make it to start the fire, we did! :)

Ignition is a crucial function in thermal systems. One counts on it when one needs it. This is even more true for set-ups where starts and stops are seldom.

As experts in technical combustion, we happen to have a large experience in ignition. Poor ignition can in the worst case provoke a detonation: the combustor has filled with reactants near the stoichiometry, the energy kernel of the ignition happens to be to high and generates unwillingly a deflagration-to-detonation transition. And boom! And at best the combustor is damaged... This cannot happen. One needs to rely 100% on the ignition, for a smooth and well-controlled start.

In the frame of the emo(o)tion projects, we developed an all-rounder ignition device that connects well with this project because it partly relies on an optical-based flame monitoring. The principle is based on a separated, autonomous premixed flame commanded by a remote central. The device can operate under atmospheric or under elevated pressure conditions. The central can be used for protection, where it prevents the main power source from starting as long as the safe start-up conditions are not reunited, exactly like in a rocket launch sequence.

Click here to read more about the S3R ignition specifics.

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Fuel economy, clean energy - MethaNull

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Published on Sunday, 11 May 2014 08:00

With the help of the FFG in 2012 and of the AWS in 2013, CBOne started the MethaNull programme (Towards zero Methane emissions in the atmosphere). This technology aims to burn gases with low heat contents under enhanced operation and safety conditions.

Our intention was to provide within a 3-years frame a portable technology based on pulse combustion.

We did achieve our goals.

Read more: Fuel economy, clean energy - MethaNull

MethaNull at EnInnov 2016: same power, 2% less consumption and CO2, 15% less other pollutants

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Published on Sunday, 07 February 2016 17:25

(conference talk)

The COP21 conference in Paris, December 2015, made decisions about keeping the temperature rise below 2 degrees. This implies more sustainable resources and a rationalisation on our use of conventional energies. One option is better combustion technologies.

In 2012, CBOne announced the start of the programme MethaNull. Based on a flexible on-off pulse combustion technology, simultaneous decrease in consumption and in pollutant emissions should be made possible. We worked on this technology demonstrator intensively 2013-2015 with the support of the AWS / PreSeed grant. Today we are proud to announce: it works!

Laboratory testing showed that at the same fuel consumption, MethaNull technology versus conventional provides the following figures: +2% in outlet temperatures were observed, for -15% NOx and -13% CO emissions. Machine warm-up is accelerated with a 1.1 factor. Operation is extended down to 90% fuel consumption of the conventional lean blow out limit.

More at the EnInnov 2016:

Moosbrugger, V.; Giuliani, F.: MethaNull, ein Programm zur Senkung der Methanemissionen in der Atmosphäre. - in: EnInnov 2016, 14. Symposium Energieinnovation 2016 (2016) Symposium Energieinnovation, TU Graz, Austria (presentation Th. 11.02, 14h30, session B3)

• Read the article (in German)
• Download the presentation (in German)
• Download the ASME Montreal 2015 presentation (in English)

ASME Turbo Expo 2017: Make Combustion Great Again!!!!

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Published on Friday, 24 March 2017 15:47

We are honoured to be part of the renowned ASME Turbo Expo 2017. This year's ASME conference will be held from June 26 - 30 in Charlotte, North Carolina. CBOne will present its latest research about a novel probe concept for advanced combustion monitoring and about a method for the improvement of impaired combustion conditions at off-design operation points.

For more information about the articles & presentations click on the references below

• Kraft, G. E., Giuliani, F., Pfefferkorn, L., Paulitsch, N., and Andracher, L., 2017. 
  Heat resistant probe combining optic and acoustic sensors for advanced combustion monitoring including detection of flame instabilities. 
  In Proceedings of ASME Turbo Expo, Charlotte, North Carolina, USA.
  GT2017-63626: Download the presentation

• Giuliani, F., Pfefferkorn, L., and Kraft, G. E., 2017. 
  Improvement of impaired combustion conditions at some off-design operation by driving a precisely controlled modulation of the burner air feed. 
  In Proceedings of ASME Turbo Expo, Charlotte, North Carolina, USA.
  GT2017-64429: Download the presentation

• We made the Headlines! Read the press article at ORF.at (German)

• Further information regarding the ASME Turbo Expo 2017 can be found here

Charlotte likes it hot !!!

For the improvement of impaired combustion conditions a robust acoustic driver (called siren) is used, being able to perform well and last long in an industrial environment. The previous figure suggests how the siren could be implemented on a real power gas turbine.

Read more: ASME Turbo Expo 2017: Make Combustion Great Again!!!!