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Analysis of Reaction Mechanism Preparing Hot Ignition Observed in Homogeneous Compression of n-Heptane Air Mixture
Technical Paper
2019-01-2348
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Multi-stage heat releases in homogenous charge compression ignition (HCCI) near the ignition threshold are analyzed in this study. Motored engine experiments are conducted with exhaust gas analysis by Fourier transform infrared spectrometer under hot ignition suppressed condition, in order to provide a deeper insight into the ignition mechanism of n-heptane. By increasing intake temperature from room temperature, heat release of low temperature oxidation (LTO) can be observed. Moreover, second heat release was observed after primary heat release of LTO, which increases rapidly with increasing intake temperature within narrow range below the high temperature oxidation (HTO) threshold. The mechanism of HTO preparation reaction is discussed.
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Safwan bin Mazelan, M., Tezaki, A., and Thapa, S., "Analysis of Reaction Mechanism Preparing Hot Ignition Observed in Homogeneous Compression of n-Heptane Air Mixture," SAE Technical Paper 2019-01-2348, 2019, https://doi.org/10.4271/2019-01-2348.Data Sets - Support Documents
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