S3R: Safe, Smooth, Smart & Reliable Ignition

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.

Ignition sequence using the S3R tecnology, applied to the AM burner CBO4

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

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.
    GT2017-63626Download 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


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!!!!

GTI2016: Filling in the missing link on combustion monitoring between laboratory and real gas turbine

Meggitt Sensing Systems and Combustion Bay One work together on monitoring of combustion dynamics in gas turbines. The latest progress will be presented at the conference GTI2016 in Berlin (presentation no. 026). This presentation focuses on the latest efforts made to automate the recording and documentation of even small changes of the burner operation conditions, and correlate these to the dynamic measurements.

Key elements of the combined static-dynamic synchronous acquisition (click to download the presentation)

Synchronous capture of GT combustor operating conditions and main combustion dynamics parameters combining quasi-static and fast-response measurements in a well-documented and compact manner
L. Pfefferkorn*, C. Wieland*, F. Giuliani*, H. Reiss†
*CBOne, Austria †Meggitt Sensing Systems, Switzerland

Date and location: GTI2016, Berlin, Thursday 29th September 2016 at 11:30 

The focus is put on the precise combustion control using CBOne's burner test rig and methods, and detailed description of the latter using MSS' measurement chain including fast-pressure sensors and accelerometers, as well as associated data acquisition systems.

Read more: GTI2016: Filling in the missing link on combustion monitoring between laboratory and real gas...

The Strings of Fire

Combustion Bay One worked together with Meggitt Sensing Systems (MSS) on an Applied Research & Development programme for precision monitoring of gas turbine combustion.

An original methodology for gas turbine combustor characterisation and monitoring was developed, using MSS' instrumentation and CBOne's siren pulsator. Experiments with combustion were performed on CBOne's test bench at FH Joanneum, Graz, Austria. The results are published in a joint article to be presented at the ASME Turbo Expo in Seoul, South Korea, 13-17th of June 2016.

Giuliani F., Reiss H., Stuetz M., Moosbrugger V. and Silbergasser A.
Readings on specific gas turbine flame behaviours using an industrial combustion monitoring system.
Proceedings of the ASME Turbo Expo 2016: Turbine Technical Conference and Exposition
July 13-17th, 2016, Seoul, South Korea. GT2016-56166

Read more: The Strings of Fire

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

(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)