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Laser-Stimulated Ignition in a Homogeneous Charge Compression Ignition Engine
Technical Paper
2004-01-0937
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A laser-induced spark was generated inside the combustion chamber of a reciprocating engine running in Homogeneous Charge Compression Ignition (HCCI) mode to investigate the influence of the plasma on combustion performance. For a fuel consisting of 90% natural gas and 10% isooctane, the advance of combustion due to the plasma was found to be strong up to air excess ratios of λ = 2.3 and to cease completely above λ = 2.7. Combustion timing was advanced with increasing advance of plasma timing to a certain extent. The laser was able to sustain HCCI combustion even at much lower inlet temperatures than normally required without plasma. Inlet temperature changes of more than 10 °C could not eliminate laser stimulated HCCI combustion. A potential application of laser stimulated ignition is as a means to actively control HCCI combustion timing.
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Authors
- H. Kopecek - Photonics, Vienna University of Technology
- E. Wintner - Photonics, Vienna University of Technology
- M. Lackner - Chemical Engineering, Vienna University of Technology
- F. Winter - Chemical Engineering, Vienna University of Technology
- A. Hultqvist - Combustion Engines, Lund Institute of Technology
Citation
Kopecek, H., Wintner, E., Lackner, M., Winter, F. et al., "Laser-Stimulated Ignition in a Homogeneous Charge Compression Ignition Engine," SAE Technical Paper 2004-01-0937, 2004, https://doi.org/10.4271/2004-01-0937.Also In
Homogeneous Charge Compression Ignition (Hcci) Combustion 2004
Number: SP-1819; Published: 2004-03-08
Number: SP-1819; Published: 2004-03-08
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