Lecture |
Completed
Tuesday 3 June 2008
Institution of Mechanical Engineers
1 Birdcage Walk
London
SW1H 9JJ United Kingdom
Compared to diesel, gasoline is much more resistant to auto-ignition. If injected late in the compression stroke, it ignites much later; combustion occurs when fuel and air have had more chance to mix. If the same amount of gasoline is injected, early in the stroke, with fully premixed conditions, ignition might not occur at all. Thus in-homogeneity is essential for combustion to occur. High ignition delay makes combustion happen when fuel and air are better mixed - fuel and air must be 'premixed enough' but not fully premixed.
Gautam Kalghatgi is a Principal Scientist in the Fuels Technology Group at Shell Global Solutions in the UK where he has worked since 1979. He is a Visiting Professor at Sheffield University and was an adjunct Professor at the Royal Institute of Technology (KTH), Stockholm. He is a Fellow of the SAE and of the IMechE.
THIS LECTURE IS FREE AND OPEN TO ALL