Development of skeletal oxidation mechanisms for linear alcohols from C4 to C10 based upon reaction rate rules

Chang, Yachao; Jia, Ming; Huang, Shuai; Zhang, Hongda; Cai, Liming

doi:10.1016/j.combustflame.2022.112351

Cited by 4 publications

(1 citation statement)

References 37 publications

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“…The skeletal reduction deletes the unimportant species and reactions by one or a combination of the following methods: (1) directed relation graph (DRG) [10], (2) DRG with error propagation (DRGEP) [11], (3) path flux analysis (PFA) [12], (4) revised DRG [13], and (5) CSP [14]- [17]. The timescale based reduction identifies the global quasi-steady-state species on the basis of good experience by one or a combination of the following methods: (1) CSP [18], [19], (2) QSS approximation [20], (3) intrinsic low dimensional manifold (ILDM) [21] and other methods [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

A reduced chemical kinetic mechanism of diesel fuel for HCCI engines

Liu¹,

Zhang²

2023

J. meas. eng.

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A reduced mechanism of diesel fuel was developed on the basis of Wang’s mechanism. First, for removing the unimportant reactions, an importance index was defined on the basis of computational singular perturbation (CSP). Choosing the importance index of 0.0065, the 140 unimportant reactions were removed, and obtained a smaller mechanism of 403 elementary reactions. Second, 32 global quasi-steady-state (QSS) species were found with the threshold value of 0.005. Finally, the smallest mechanism containing 77-species was obtained. By contrast with the ignition delay time of the original Wang’s mechanism, the maximum error of the final 77-species mechanism was 7.2 %. The final mechanism was also performed with the original Wang’s mechanism and the experiments date from the selected homogeneous charge compression ignition (HCCI) engine, the good overlap of curves was obtained and the maximum error of the simulation results was less than 10 %.

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