This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Photographic Study of Plasma Ignition Systems
Annotation ability available
Sector:
Language:
English
Abstract
A photographic study was conducted using an optical-access compression-expansion machine in order to reveal the mechanism of ignition and flame propagation initiated by plasma igniters. The tests included a jet igniter with inert cavity liner (quartz), a jet igniter with reactive cavity liner (paraffin), and a J-gap spark plug. Schlieren cinematographic records were obtained for each condition along with concomitant pressure traces.
Basic features of ignition and combustion at lean limit were determined for each igniter. The spark plug permited lean operation down to an equivalence ratio of 0.7, after which mis-ignition occurred. Jet igniters provided an extension of lean limit to 0.5 in equivalence ratio. For jet igniters, these limits were imposed by either extinction of the flame or too slow burning rate, rather than by misfire.
Recommended Content
Authors
Citation
Edwards, C., Stewart, H., and Oppenheim, A., "A Photographic Study of Plasma Ignition Systems," SAE Technical Paper 850077, 1985, https://doi.org/10.4271/850077.Also In
References
- Dale J.D. Oppenheim A.K. “Enhanced Ignition for I.C. Engines with Premixed Gases,” SAE Paper 810146
- Carleton F.B. Vince I.M. Weinberg F.J. “Energy and Radical Losses from Plasma Jet Igniters to Solid Surfaces,” 19th Symposium (International) on Combustion 1523 1532 The Combustion Institute Pittsburgh 1982
- Warris A.M. Weinberg F.J. “Ignition and Flame Stabilization by Plasma Jets in Fast Gas Streams,” 20th Symposium (International) on Combustion Ann Arbor, Michigan August 1984
- Weinberg F.J. “Plasma Jets in Combustion,” International Conference on Combustion in Engineering I 65 72 The Institution of Mechanical Engineers London 1983
- Clements R.M. Smy P.R. Topham D. Vince I.M. Vovelle C. Weinberg F.J. “Chemical Activity and Transport Processes in the Vicinity of a Plasma Jet Igniter,” Combustion and Flame 57 265 274 1984
- Dale J.D. Smy P.R. Clements R.M. “The Effects of a Coaxial Spark Igniter on the Performance of and Emissions from an Internal Combustion Engine,” Combustion and Flame 31 2 173 185 1978
- Anderson R.W. Asik J.R. “Ignitabillty Experiments in a Fast Burn, Lean Burn Engine,” SAE Paper 830477
- Tozzi L. Dabora E.K. “Plasma Jet Ignition in a Lean-Burn CFR Engine,” 19th Symposium (International) on Combustion 1467 1474 The Combustion Institute Pittsburgh 1982
- Rao Mittini D.N. Dabora E.K. “Plasma Jet Ignition Studies,” 20th Symposium (International) on Combustion Ann Arbor, Michigan August 1984
- Maly R. Saggau B. Wagner E. Ziegler G. “Prospects of Ignition Enhancement,” SAE Paper 830478
- Ziegler G.F. Maly R.R. Wagner E.P. “Effect of Ignition System Design on Flammability Requirements in Ultra-Lean Turbulent Mixtures,” International Conference on Combustion in Engineering I