Investigation of Premixed and Diffusion Flames in PPC and CI Combustion Modes
Hernandez Perez, Francisco
Im, Hong G.
KAUST DepartmentClean Combustion Research Center
Computational Reacting Flow Laboratory (CRFL)
Mechanical Engineering Program
Physical Science and Engineering (PSE) Division
Permanent link to this recordhttp://hdl.handle.net/10754/630392
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AbstractThe experimental in-cylinder combustion process was compared with the numerical simualtion for naphtha fuel under conventional compression ignition (CI) and partially premixed combustion (PPC) conditions. The start of injection timing (SOI) with the single injection strategy was changed from late of 10 CAD aTDC to early of 40 CAD aTDC. The three-dimensional full cycle engine combustion simulation was performed coupling with gas phase chemical kinetics by the CFD code CONVERGE™. The flame index was used for evaluating the combustion evolution of premixed flame and diffusion flame. The results show that the flame index could be used as an indicator for in-cylinder homogeneity evaluation. Hydroperoxyl shows a similar distribution with the premixed combustion. Formaldehyde could be used as an indicator for low temperature combustion.
CitationAn Y, Mubarak Ali MJ, Vallinayagam R, Vedharaj S, Hernandez Perez F, et al. (2018) Investigation of Premixed and Diffusion Flames in PPC and CI Combustion Modes. SAE Technical Paper Series. Available: http://dx.doi.org/10.4271/2018-01-0899.
SponsorsThis work was funded by competitive research funding from King Abdullah University of Science and Technology (KAUST) under the Clean Combustion Research Center’s research program. We also acknowledge funding from KAUST and Saudi Aramco under the FUELCOM2 program. Finally, we would like to express our gratitude to our Research technician, Adrian. I. Ichim and Riyad Jambi for their support in carrying out the experiments at KAUST engine lab.
JournalSAE Technical Paper Series
Conference/Event name2018 SAE World Congress Experience, WCX 2018