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Laser-Stimulated Ignition in a Homogeneous Charge Compression Ignition Engine
Lunds Tekniska Högskola, Värme- och kraftteknik.
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2004 (English)In: SAE, Session: Homogeneous Charge Compression Ignition (HCCI) Combustion (Part 3 & 4), 2004Conference paper, Published paper (Refereed)
Abstract [en]

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.

Place, publisher, year, edition, pages
2004.
Series
SAE, 2004-01-0937
Keyword [en]
Combustion chambers, Diesel engines, Paraffins, Plasmas
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-177590DOI: 10.4271/2004-01-0937Scopus ID: 2-s2.0-84877227941OAI: oai:DiVA.org:kth-177590DiVA: diva2:873469
Conference
SAE 2004 World Congress & Exhibition, Detroit, MI, USA.
Note

QC 2016-02-05

Available from: 2015-11-24 Created: 2015-11-24 Last updated: 2016-02-05Bibliographically approved

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