Conference proceeding
Low temperature chemistry preceding end gas autoignition
01 Apr 1985
Abstract
A comparison is made between measured species concentrations in a spark ignition engine and predictions from a numerical model using detailed chemical kinetics. Gas samples are extracted from the end gas at times just prior to autoignition of n-butane/air or iso-butane/air mixtures. Concentration histories of stable species are obtained through gas chromatographic analysis. A detailed chemical kinetics model is used to predict species concentrations in an idealized end gas. The chemical reactions leading to formation of the relevant species are identified. The relative distribution of intermediate products predicted by the model is in good agreement with the experimental measurements. Chemical kinetic differences between autoignition of n-butane, a straight chain hydrocarbon, and iso-butane, a branched chain hydrocarbon, are discussed.
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Details
- Title
- Low temperature chemistry preceding end gas autoignition
- Creators
- N.P CernanskyR.M GreenW.J PitzC.K WestbrookLawrence Livermore National Lab., CA (USA)
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- [Retired Faculty]; College of Engineering
- Identifiers
- 991020202348904721