Experimental Understanding of Ozone Decomposition inside a Low Temperature Combustion Engine

ABSTRACT

Low-temperature combustion engines have the potential to meet pollutant requirements and reduce fuel consumption. The present study, based on an ultraviolet light absorption diagnostic, investigates ozone decomposition inside a single-cylinder compression ignition engine. Experiments were performed under HCCI conditions for non-reactive and reactive cases. Experimental results showed that intake parameters, pressure and temperature, and intake flow composition have a significant impact on ozone decomposition timing. In this study H₂O vapor and Isooctane seem to have the most significant impact on ozone decomposition.

KEYWORDS:

• Low temperature combustion
• compression ignition engine
• ozone
• decomposition

Funding

The work performed at the University of Orléans, France, was supported by the CICCO project from the French National Research Agency, ANR-15-CE22-0004.