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- W2019370044 endingPage "380" @default.
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- W2019370044 abstract "An overview of predictive chemical kinetics is presented, with an application to the simulation and design of homogeneous charge compression ignition (HCCI) engines. The engine simulations are sensitive to the details of hydroperoxyalkyl (QOOH) radical chemistry, which are only partially understood, and there is a significant discrepancy between the simulations and experiment that limits the usefulness of the simulations. One possible explanation is that QOOH decomposes by other channels not considered in existing combustion chemistry models. Rate constants for one of these neglected channels, the intramolecular radical attack on the QOOH peroxide linkage to form hydroxyalkoxyl (HOQO) radicals, are predicted using quantum chemistry (CBS-QB3), to test whether or not this proposed channel can explain the observed discrepancies in the engine simulations. Although this channel has a significant rate, the competing attack on the other O atom in the peroxide to form a cyclic ether+OH is computed to be an order of magnitude faster, so the HOQO channel does not appear to be fast enough to explain the discrepancy. Definitive judgement on the importance of this reaction channel will require a careful reconsideration of all the coupled chemically activated QOOH reaction channels using modern predictive chemical kinetics software." @default.
- W2019370044 created "2016-06-24" @default.
- W2019370044 creator A5051475129 @default.
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- W2019370044 date "2004-02-20" @default.
- W2019370044 modified "2023-10-17" @default.
- W2019370044 title "Predicting chemical kinetics with computational chemistry: is QOOH→HOQO important in fuel ignition?" @default.
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- W2019370044 doi "https://doi.org/10.1080/00268970410001675617" @default.
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