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arXiv · 0903.4353

Modeling of NO sensitization of IC engines surrogate fuels auto-ignition and combustion

Jörg Anderlohr·A. Pires Da Cruz·Roda Bounaceur·Frédérique Battin-Leclerc
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Abstract

This paper presents a new chemical kinetic model developed for the simulation of auto-ignition and combustion of engine surrogate fuel mixtures sensitized by the presence of NOx. The chemical mechanism is based on the PRF auto-ignition model (n-heptane/iso-octane) of Buda et al. [1] and the NO/n-butane/n-pentane model of Glaude et al. [2]. The later mechanism has been taken as a reference for the reactions of NOx with larger alcanes (n-heptane, iso-octane). A coherent two components engine fuel surrogate mechanism has been generated which accounts for the influence of NOx on auto-ignition. The mechanism has been validated for temperatures between 700 K and 1100 K and pressures between 1 and 10 atm covering the temperature and pressure ranges characteristic of engine post-oxidation thermodynamic conditions. Experiments used for validation include jet stirred reactor conditions for species evolution as a function of temperature, as well as diesel HCCI engine experiments for auto-ignition delay time measurements.

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Jörg Anderlohr, A. Pires Da Cruz, Roda Bounaceur, Frédérique Battin-Leclerc. 2009-03-25. Modeling of NO sensitization of IC engines surrogate fuels auto-ignition and combustion. https://arxiv.org/abs/0903.4353

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