Journal
PROCEEDINGS OF THE COMBUSTION INSTITUTE
Volume 34, Issue -, Pages 3005-3012Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.proci.2012.05.042
Keywords
HCCI; n-Heptane oxidation; Ozone; Control
Funding
- ERC [291049 2G-CSafe]
- European Union
- European Regional Development Fund
Ask authors/readers for more resources
Homogeneous charge compression ignition (HCCI) experiments were performed in a single-cylinder diesel engine fueled with n-heptane at constant equivalence ratio of 0.3, intake temperature of 300 K, and engine speed of 1500 rpm. The intake manifold was seeded by ozone produced by a dielectric barrier discharge reactor with a wire-cylinder configuration. Experimental results showed that low ozone concentrations, i.e., < 50 ppm, have an important impact on the phasing of the cool and main flame in the engine. To interpret the engine results, the modeling of constant volume combustion at 20 and 40 bars was performed using a detailed chemical kinetic reaction mechanism. The kinetic modeling indicated that the fuel starts to oxidize via reaction with O-atoms produced by ozone decomposition (n-C7H16 + O -> C7H15 + OH) and that the ozone-accelerated production of OH speed up both cool and main flame. The production of O-atoms by decomposition of ozone during the compression stroke could be a way to control, cycle to cycle, two stage ignition fuels of HCCI engine. (C) 2012 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available