E105 the Clarification of Fuel-Vapor Concentration on the Process of Initial Combustion and Soot Formation in a Di Diesel Engine

Koto, Fumiya; Yanagimoto, Tasuku; Mori, Kohji; Senda, Jiro; Fujimoto, Hajime

doi:10.1299/jsmeicope.2003.1._1-253_

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“…Firstly, it undergoes gas phase reactions, phase transitions from gaseous to solid state. Then the formation of soot particles in diesel cylinders undergoes the evolution of kinetic events such as nucleation, condensation, collision fragmentation, growth, and surface oxidation [10][11][12][13][14]. The specific formation process described by the soot particle model is shown in Figure 2.…”

Section: The Condensation Growth Process Of the Soot And Its Simulatimentioning

confidence: 99%

The Diesel Soot Particles Fractal Growth Model and Its Agglomeration Control

Liu¹,

Wang²

2019

Kinetic Modeling for Environmental Systems

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Based on the fractal growth physical model of soot particles from large diesel agriculture machinery, this chapter simulates the morphological structure of collision for the single particles and single particles, single particle and clusters, clusters and clusters, firstly. Moreover, combining with the collision frequency, the fractal growth is controlled to agglomeration using the main environmental factors interference for diesel engine soot particles, in order to make them condensed into regular geometry or larger density particles, reduce the viscous drag for capturing by the capturer or settlement and to realize the control of the pollution of the environment. The results of numerical simulation show that the proposed method is feasible and effective, which will help to understand and analyze the physical mechanism and kinetics of non-equilibrium condensation growth behavior of the actual carbon smoke particles and provide the solution to further reduce emissions of the inhalable particulate matter from diesel engines.

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Section: The Condensation Growth Process Of the Soot And Its Simulatimentioning

confidence: 99%