Analysis of the Effect of Charge Inhomogeneity on HCCI Combustion by Chemiluminescence Measurement

2004-01-1902

06/08/2004

Event
2004 SAE Fuels & Lubricants Meeting & Exhibition
Authors Abstract
Content
In the HCCI Engine, inhomogeneity in fuel distribution and temperature in the pre-mixture exists microscopically, and has the possibility of affecting the ignition and combustion process. In this study, the effect of charge inhomogeneity in fuel distribution on the HCCI combustion process was investigated. Two-dimensional images of the chemiluminescence were captured by using a framing camera with an optically accessible engine in order to understand the spatial distribution of the combustion. DME was used as a test fuel. By changing a device for mixing air and fuel in the intake manifold, inhomogeneity in fuel distribution in the pre-mixture was varied. The result shows that luminescence is observed in a very short time in a large part of the combustion chamber under the homogeneous condition, while luminescence appears locally with considerable time differences under the inhomogeneous condition. It is also shown that the local luminescence durations are almost the same in both conditions.
Meta TagsDetails
DOI
https://doi.org/10.4271/2004-01-1902
Pages
15
Citation
Kumano, K., and Iida, N., "Analysis of the Effect of Charge Inhomogeneity on HCCI Combustion by Chemiluminescence Measurement," SAE Technical Paper 2004-01-1902, 2004, https://doi.org/10.4271/2004-01-1902.
Additional Details
Publisher
Published
Jun 8, 2004
Product Code
2004-01-1902
Content Type
Technical Paper
Language
English