Numerical Modeling of Soot Emissions in Diesel Sprays Based on Detailed Fuel and PAH Chemistry

Sukumaran, Sujith; Huynh, Cuong; Kong, Song‐Charng

doi:10.1080/00102202.2013.831085

Cited by 22 publications

(15 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Using pyrenyl ðC 16 H 9 Þ as precursor as in [6,16,[26][27][28], V MIN becomes equal to 18V C 2 with a value of 3:857 Á 10 À28 m 3 which is approximately the volume of a 0:9 nm diameter sphere. In the case of a complete solid-gas coupling between the soot model and a kinetic solver, all hydrogen atoms taken from the gas phase are then sent to H 2 to close the hydrogen balance since all volumes exchanged between phases are given with respect to the exchanged number of carbon atoms.…”

Section: Volume Discretizationmentioning

confidence: 99%

Sectional soot model coupled to tabulated chemistry for Diesel RANS simulations

Aubagnac-Karkar

Michel

Colin

et al. 2015

Combustion and Flame

View full text Add to dashboard Cite

Section: Volume Discretizationmentioning

confidence: 99%

Sectional soot model coupled to tabulated chemistry for Diesel RANS simulations

Aubagnac-Karkar

Michel

Colin

et al. 2015

Combustion and Flame

View full text Add to dashboard Cite

“…The precursor species used in these phenomena is a virtual species called PAH (polycyclic aromatic hydrocarbons). PAH is the product of the pyrenyl radical ( C 16 H 9 ) , a usual soot precursor, 2,45,49–51 polymerization by acetylene as 2,3,49,51…”

Section: Modelsmentioning

confidence: 99%

Combustion and soot modelling of a high-pressure and high-temperature Dodecane spray

Aubagnac-Karkar

Michel

Colin

et al. 2017

International Journal of Engine Research

View full text Add to dashboard Cite

Diesel engines are known to be one of the main sources of soot particle emission in the atmosphere. The norms to restrain these emissions have created a need of accurate soot models for piston engine emissions prediction in the automotive industry. This article addresses this question by coupling a sectional soot model with a tabulated combustion model for Reynolds-averaged Navier-Stokes simulations of the engine combustion network Spray A, a high-pressure Dodecane spray with conditions very similar to diesel engine sprays. The sectional soot model, which has already been used in diesel engines Reynolds-averaged Navier-Stokes simulations with a simpler combustion model, is implemented in the IFP-C3D Reynolds-averaged Navier-Stokes computational fluid dynamics code. At each time and location, transport equations are solved for several soot sections, including source terms for collisional and chemical processes. The soot model is here coupled to the approximated diffusion flame-presumed conditional moment model, which is a tabulated combustion model. It allows to represent the minor species required by the soot model with a much lower computational cost than a kinetic solver and includes complex turbulence-chemistry interactions. The predictions of these models agree with the experimental measurements for most of the Spray A cases for flame structure and soot production. These results show that detailed soot models can be coupled to tabulated combustion models with good results in turbulent flames.

show abstract

“…The results (Espinal et al, 2007;Sukumaran et al, 2013) proved that hydrocarbon substances containing many aromatic ring structures were produced after coal pyrolysis. The data of 13 C nuclear magnetic resonance on coal tar samples revealed that char sets Downloaded by [University of Tasmania] were constituted by three to seven benzene rings (Perry et al, 2000).…”

Section: Choice Of Char Edge Modelsmentioning

confidence: 94%

Mechanisms Study of NH₃Formation in the Reaction Between H₂and Char Edge Models Containing 2-Pyridone

Jing

Sun

Zhu

et al. 2014

Combustion Science and Technology

View full text Add to dashboard Cite

Molecular modeling research based on transition state theory and density functional theory was performed to clarify the mechanisms for NH 3 evolution during the reaction of H 2 with char edge models containing 2-pyridone in zigzag and armchair configurations. The thermal chemical activation energy and enthalpy change were calculated in the overall process of NH 3 formation. The results indicate that formation of −NH 2 radicals is possible for both char edge models containing 2-pyridone in the zigzag and armchair configurations. Then, NH 3 can be produced through homogeneous hydrogen abstraction. It is found that the reaction of releasing NH 3 can be completed relatively easily with the char edge model containing 2-pyridone in the armchair configuration. Most pathways for NH 3 evolution appear to involve endothermic reactions for both configurations. These results provide a reference and basis for controlling the emission of nitrogen oxide.

show abstract

Numerical Modeling of Soot Emissions in Diesel Sprays Based on Detailed Fuel and PAH Chemistry

Cited by 22 publications

References 37 publications

Sectional soot model coupled to tabulated chemistry for Diesel RANS simulations

Sectional soot model coupled to tabulated chemistry for Diesel RANS simulations

Combustion and soot modelling of a high-pressure and high-temperature Dodecane spray

Mechanisms Study of NH₃Formation in the Reaction Between H₂and Char Edge Models Containing 2-Pyridone

Contact Info

Product

Resources

About

Numerical Modeling of Soot Emissions in Diesel Sprays Based on Detailed Fuel and PAH Chemistry

Cited by 22 publications

References 37 publications

Sectional soot model coupled to tabulated chemistry for Diesel RANS simulations

Sectional soot model coupled to tabulated chemistry for Diesel RANS simulations

Combustion and soot modelling of a high-pressure and high-temperature Dodecane spray

Mechanisms Study of NH3Formation in the Reaction Between H2and Char Edge Models Containing 2-Pyridone

Contact Info

Product

Resources

About

Mechanisms Study of NH₃Formation in the Reaction Between H₂and Char Edge Models Containing 2-Pyridone