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Development and Reduction of n-Heptane Mechanism for Soot Model
Technical Paper
2017-01-2182
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
According to the study of the soot emission in the combustion of diesel,a new reduced mechanism for n-Heptane was constructed to describe the combustion process in diesel engine by using sensitivity analysis.Furthermore,verifying the ignition delay time in combustion process by using CHEMKIN PRO in different pressure of 13.5 atm and 42 atm, initial temperatures of 600k and equivalence ratio of 0.5 and 1.0.Then,compare the simulated results with the experiment data, the mechanisms used in the simulation were Lawrence Livermore National Laboratory (LLNL) detail mechanism and the State Key Laboratory of Engine (SKLE) mechanism. It is demonstrated that the reduced mechanism can not describe the ignition delay time in low temperature.And then,the reduced mechanism was adjusted and optimized to make it more close to the experiment data,and the reduced mechanism were able to predict ignition delay time to some extent.The final reduced n-Heptane mechanism are more compact compare with the current detailed mechanisms in literature.Thus,this reduced n-Heptane mechanism can reduce the pressure of calculation and save the calculation time. And this reduced mechanism will using in the improved nine-step soot model for predicting soot formation and oxidation process in diesel engines by using Converge.
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Liu, X., Liang, X., Wu, Y., and Wang, Y., "Development and Reduction of n-Heptane Mechanism for Soot Model," SAE Technical Paper 2017-01-2182, 2017, https://doi.org/10.4271/2017-01-2182.Data Sets - Support Documents
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References
- Joo H I , Gülder Ömer L. Soot formation and temperature field structure in co-flow laminar methane-air diffusion flames at pressures from 10 to 60 atm[J] Proceedings of the Combustion Institute 2009 32 1 769775 10.1016/j.proci.2008.06.166
- Curran H J , Gaffuri P , Pitz W J et al. A comprehensive modeling study of n-heptane oxidation Comb and Flame 1998 114 149 177 10.1016/S0010-2180(97)00282-4
- Prince J C , Williams F A , Ovando G E A short mechanism for the low-temperature ignition of n-heptane at high pressures[J] Fuel 2015 149 138 142
- Prince J C , Williams F A Revised short mechanism for the low-temperature ignition of n-heptane for a wider pressure range[J] Fuel 2015 150 730 731 10.1016/j.fuel.2015.02.029
- Su W , Huang H Development and calibration of a reduced chemical kinetic model of n -heptane for HCCI engine combustion[J] Fuel 2005 84 9 1029 1040 10.1016/j.fuel.2005.01.015
- Xi J , Zhong B J Reduced Kinetic Mechanism of n - Heptane Oxidation in Modeling Polycyclic Aromatic Hydrocarbon Formation in Diesel Combustion[J] Chemical Engineering & Technology 2006 29 12 1461 1468
- Zhao C P , Chen S Q , Song C L et al. PAHs Formation Mechanism in N-Heptane Premixed Flame[J] Journal of Combustion Science & Technology 2008 14 5 400 405
- Wang H , Frenklach M A detailed kinetic modeling study of aromatics formation in laminar premixed acetylene and ethylene flames [J] Combustion & Flame 1997 110 1-2 173 221 10.1016/S0010-2180(97)00068-0
- Prince J C , Williams F A Short chemical-kinetic mechanisms for low-temperature ignition of propane and ethane[J] Combustion & Flame 2012 159 7 2336 2344 10.1016/j.combustflame.2012.02.012
- Wang F , Zheng Z , He Z Reduced Polycyclic Aromatic Hydrocarbon Formation Chemical Kinetic Model of Diesel Surrogate Fuel for Homogeneous Charge Compression Ignition Combustion[J] Energy Fuels 2012 26 3 1612 1620
- Ciezki H.K. , Adomeit G. Shock-tube investigation of self-ignition of n -heptane-air mixtures under engine relevant conditions [J] Combustion & Flame 1993 93 4 421 433 10.1016/0010-2180(93)90142-P
- Sun X , Liang X , Shu G et al. Effect of Different Combustion Models and Alternative Fuels on Two-stroke Marine Diesel Engine Performance[J] 2016 10.1016/j.applthermaleng.2016.12.093