Influence of Diesel Engine Combustion Parameters on Primary Soot Particle Diameter

2005 ◽  
Vol 39 (6) ◽  
pp. 1887-1892 ◽  
Author(s):  
Urs Mathis ◽  
Martin Mohr ◽  
Ralf Kaegi ◽  
Andrea Bertola ◽  
Konstantinos Boulouchos
Keyword(s):  
Diesel Engine ◽  
Soot Particle ◽  
Particle Diameter ◽  
Engine Combustion ◽  
Primary Soot Particle

An Improved Soot Formation Model for 3-D Diesel Engine Simulations

2005 ◽  
Author(s):  
Joan Boulanger ◽  
Fengshan Liu ◽  
W. Stuart Neill ◽  
Gregory J. Smallwood
Keyword(s):  
Diesel Engine ◽  
Soot Particle ◽  
Soot Formation ◽  
Qualitative Description ◽  
Exhaust Gas ◽  
Engine Combustion ◽  
Combustion Modelling ◽  
Gas Recirculation ◽  
Distinct Features ◽  
Soot Model

In this study, a phenomenological three-equation soot model was developed for modelling soot formation in diesel engine combustion based on considerations of acceptable computational demand and a qualitative description of the main features of the physics of soot formation. The model was developed based on that of Tesner et al. The model was implemented into the commercial STAR-CD CFD package and was demonstrated in the modelling of soot formation in a single-cylinder research version of Caterpillar 3400 series diesel engine with exhaust gas recirculation. Numerical results show that the new soot formulation overcomes most of the drawbacks in the existing soot models and demonstrates a robust and consistent behaviour with experimental observation. Compared to the existing soot models for engine combustion modelling, some distinct features of the new soot model include: no soot is formed at low temperature, minimal model parameter adjustment for application to different fuels, and there is no need to prescribe the soot particle size.

Effects of water introduction on diesel engine combustion and emissions

1977 ◽  
Vol 16 (1) ◽  
pp. 321-336 ◽  
Author(s):  
G. Greeves ◽  
I.M. Khan ◽  
G. Onion
Keyword(s):  
Diesel Engine ◽  
Engine Combustion

Analysis and Research of the Combustion Process of YN4100QB Diesel Engine

2013 ◽  
Vol 744 ◽  
pp. 35-39
Author(s):  
Lei Ming Shi ◽  
Guang Hui Jia ◽  
Zhi Fei Zhang ◽  
Zhong Ming Xu
Keyword(s):  
Diesel Engine ◽  
Internal Combustion Engine ◽  
Combustion Chamber ◽  
Optimization Design ◽  
Combustion Engine ◽  
Geometric Model ◽  
Combustion Process ◽  
Internal Combustion ◽  
Engine Combustion ◽  
Exhaust Noise

In order to obtain the foundation to the research on the Diesel Engine YN4100QB combustion process, exhaust, the optimal design of combustion chamber and the useful information for the design of exhaust muffler, the geometric model and mesh model of a type internal combustion engine are constructed by using FIRE software to analyze the working process of internal combustion engine. Exhaust noise is the main component of automobile noise in the study of controlling vehicle noise. It is primary to design a type of muffler which is good for agricultural automobile engine matching and noise reduction effect. The present car mufflers are all development means. So it is bound to cause the long cycle of product development and waste of resources. Even sometimes not only can it not reach the purpose of reducing the noise but also it leads to reduce the engine dynamic. The strength of the exhaust noise is closely related to engine combustion temperature and pressure. The calculation and initial parameters are applied to the software based on the combustion model and theory. According to the specific operation process of internal combustion engine. Five kinds of common operation condition was compiled. It is obtained for the detailed distribution parameters of combusted gas temperature pressure . It is also got for flow velocity of the fields in cylinder and given for the relation of the parameters and crankshaft angle for the further research. At the same time NOx emissions situation are got. The numerical results show that not only does it provide the 3D distribution data in different crank shaft angle inside the cylinder in the simulation of combustion process, but also it provides a basis for the engine combustion ,emission research, the optimization design of the combustion chamber and the useful information for the designs of muffler.

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