3D-CFD and Optical Analysis of Flame Propagation and Knock Onset for Full Load SI Engine Combustion Optimization

2005 ◽  
Author(s):  
Ernst Winklhofer ◽  
Reinhard Tatschl ◽  
Mihoko Fukumoto
Keyword(s):  
Flame Propagation ◽  
Optical Analysis ◽  
Si Engine ◽  
Full Load ◽  
Engine Combustion ◽  
Combustion Optimization

A Control-Oriented Reaction-Based SI Engine Combustion Model

2018 ◽  
Author(s):  
Ruixue C. Li ◽  
Guoming G. Zhu
Keyword(s):  
Chemical Reaction ◽  
Mass Fraction ◽  
Combustion Process ◽  
Combustion Model ◽  
Spark Ignition Engines ◽  
Si Engine ◽  
Chemical Reaction Mechanism ◽  
Engine Combustion ◽  
Rate Of Heat Release ◽  
Mass And Heat Transfer

This paper proposes a control-oriented chemical reaction-based two-zone combustion model designed to accurately describe the combustion process and thermal performance for spark-ignition engines. The combustion chamber is assumed to be divided into two zones: reaction and unburned zones, where the chemical reaction takes place in the reaction zone and the unburned zone contains all the unburned mixture. In contrast to the empirical pre-determined Wiebe-function-based combustion model, an ideal two-step chemical reaction mechanism is used to reliably model the detailed combustion process such as mass-fraction-burned (MFB) and rate of heat release. The interaction between two zones includes mass and heat transfer at the zone interface to have a smooth combustion process. This control-oriented model is extensively calibrated based on the experimental data to demonstrate its capability of predicting the combustion process and thermodynamic states of the in-cylinder mixture.

Fuel Consumption and Pollutant Emission Optimization at Part and Full Load of a High-Performance V12 SI Engine by a 1D Model

2019 ◽  
Author(s):  
Vincenzo De Bellis ◽  
Enrica Malfi ◽  
Diego Cacciatore ◽  
Antonio Aliperti ◽  
Luca Rizzi
Keyword(s):  
Fuel Consumption ◽  
High Performance ◽  
Pollutant Emission ◽  
Si Engine ◽  
Full Load ◽  
1D Model
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