Theoretical and Experimental Studies of CAI combustion in four-stroke gasoline engines

Researchers: Dr. Z. Peng, Dr. Y. Li, N. Bruzos

Supervisors: Prof. H. Zhao, Dr. T. Ma, Prof. N. Ladommatos

Sponsors: EPSRC, EU, Ford Motor Company

Principle of CAI Combustion Engine

A sparkless, flameless burning process of premixed fuel / air mixture.

Diagram showing diesel, petrol and CAI combustion engine processes

 

Diesel (CI)

Petrol (SI)

CAI HCCI

Emission

PM, NOx high NOx no PM, ultra-low NOx

Efficiency

Excellent Average Excellent

Modelling the effect of EGR using detailed chemical kinetics

Graph - timing against recycled burned gasesGraph - recycled burned gases Graph - (dP/dT)max(10^5 bar/s) against recycled burned gases

 

Visualisation of CAI combustion process

Diagram of a laser sheet in a cylinder bore Photo of the laser bore

PLIF images of CH2O

PLIF Images of CH2O

CAI Combustion Process

CAI combustion process

Page last updated: Monday 09 July 2012