Papers for the European Combustion Meeting 2003

High-speed Chemical Species Tomography (CST) using near-IR absorption has recently been demonstrated in a multi-cylinder gasoline SI engine running on retail fuel. Many of the inherent advantages of the CST technique would be even more marked in CI engines, for example in HCCI engines where mixture preparation involves residual species, and in diesel engines where gross inhomogeneities over large spatial scales are the norm. On the basis of practical experience of CST in engines and in laboratory systems, this paper explores the potential for these applications of the technique.