A reduced chemical kinetic model for IC engine combustion simulations with primary reference fuels

2008 ◽  
Vol 155 (4) ◽  
pp. 713-738 ◽  
Author(s):  
Youngchul Ra ◽  
Rolf D. Reitz
2007 ◽  
Vol 39 (7) ◽  
pp. 399-414 ◽  
Author(s):  
Marcos Chaos ◽  
Andrei Kazakov ◽  
Zhenwei Zhao ◽  
Frederick L. Dryer

Author(s):  
Qingfeng Zhang ◽  
Zhaolei Zheng ◽  
Zuwei He ◽  
Ying Wang

A skeletal chemical kinetic mechanism, including 42 species and 71 reactions for the oxidation of primary reference fuel (PRF), was developed and applied to model homogeneous charge compression ignition (HCCI) combustion after various experiments and available mechanisms for PRF oxidation being reviewed and the performance of mechanisms applied to experiments relevant to HCCI engines being analyzed. The ignition delay predicted by the skeletal mechanism showed good agreement with experiments for different fuels over the temperature range 667-1350K. Validation was also performed with experiments from HCCI engines, and good agreement was obtained for the primary reference fuels. The results show that the present PRF mechanism gives reliable performance for HCCI combustion predictions. Sensitivity analysis indicates that for PRF70 and PRF91.8 under HCCI conditions, H-atom abstraction from iso-octane molecule reaction and OH addition to n-heptane molecule have large influence, and CH2O, CH3 are very important intermediate species.


1987 ◽  
Vol 122 ◽  
pp. 551-552
Author(s):  
L.A.M. Nejad ◽  
T. J. Millar

We have developed a time-dependent chemical kinetic model to describe the chemistry in the circumstellar envelopes of cool stars, with particular reference to IRC + 10216. Our detailed calculations show that ion-molecule reactions are important in the formation of many of the species observed in IRC + 10216.


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