The Mechanism of Controlled Auto-Ignition

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Technical Lecture
25 January 2011 19:00 - 21:30
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Description

Controlled Auto-Ignition (CAI) or Homogeneous Charge Compression Ignition (HCCI) combustion is a combustion process which utilises homogeneous air/fuel mixture, but combustion is initiated by fuel self-ignition. It therefore combines features of both SI and CI combustion. During compression process, local in-homogeneity results in non-unified temperature throughout combustion chamber. When hotter parts overcome their activation energies, combustion in these parts starts. Energy extherm heats the remaining charge, then full-scale ignition is established. Time required for overall combustion reaction is merely a fraction of conventional SI combustion. It leads to a number of potential advantages regarding emissions and fuel efficiency, and difficulties in terms of control and load output range. Both will be discussed in the lecture.

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Perkins Auditorium
Vicarage Farm Road
Peterborough
PE1 5UH
United Kingdom

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