Characterization of a spark ignition system for flameholding cavities

Brieschenk, Stefan, Pontalier, Quentin, Duffaut, Alexandre, Denman, Zachary J., Veeraravagan, Anand, Wheatley, Vincent and Smart, Michael K. (2014). Characterization of a spark ignition system for flameholding cavities. In: 45th AIAA Plasmadynamics and Lasers Conference. 45th AIAA Plasmadynamics and Lasers Conference 2014, Atlanta, United States, (). 16-20 June 2014. doi:10.2514/6.2014-2242

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Author Brieschenk, Stefan
Pontalier, Quentin
Duffaut, Alexandre
Denman, Zachary J.
Veeraravagan, Anand
Wheatley, Vincent
Smart, Michael K.
Title of paper Characterization of a spark ignition system for flameholding cavities
Conference name 45th AIAA Plasmadynamics and Lasers Conference 2014
Conference location Atlanta, United States
Conference dates 16-20 June 2014
Convener Juan Alonso
Proceedings title 45th AIAA Plasmadynamics and Lasers Conference
Place of Publication Reston, VA, United States
Publisher American Institute of Aeronautics and Astronautics
Publication Year 2014
Year available 2014
Sub-type Fully published paper
DOI 10.2514/6.2014-2242
Open Access Status
ISBN 9781624102905
Total pages 18
Collection year 2015
Language eng
Formatted Abstract/Summary
 This paper presents an experimental investigation of a capacitive-discharge spark ignition system designed to promote ignition in CH4- and C2H4-fuelled supersonic combustors. The purpose of this study is the characterization of the ignition system and the plasma generated in the discharge. Schlieren and luminescence imaging are used to visualize the temporal evolution of the spark plasma. Transient voltages and currents across the primary-side of the ignition coil and input-side of the ignition unit are recorded using a high-speed data acquisition system. Three different ignition coils are tested with two different spark plug gaps in an attempt to increase the performance of the ignition system which is evaluated through spatially and temporally integrated luminescence recordings as well as temporally integrated photo diode signals. The data suggests that an increase in performance of a factor of 4-5 over the baseline setup can be achieved. A capacitive ignition lead is used to assess whether or not any capacitance on the coil secondary side can increase the performance of the ignition system. The experiments have also shown that the ignition system parameters can be set to cause sufficient heating of the electrodes to support ignition from a combined glow-spark plug setup.
Subjects 2208 Electrical and Electronic Engineering
3104 Condensed Matter Physics
Q-Index Code EX
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Tue, 22 Jul 2014, 03:24:59 EST by System User on behalf of School of Mechanical and Mining Engineering