Chemical kinetic modeling of combustion in internal combustion engines using reduced chemistry

2002 ◽  
Vol 174 (11-12) ◽  
pp. 73-91 ◽  
Author(s):  
Hakan Serhad Soyhan ◽  
Fabian Mauss ◽  
Cem Sorusbay
Keyword(s):  
Kinetic Modeling ◽  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Chemical Kinetic ◽  
Combustion Engines ◽  
Reduced Chemistry

Chemical Kinetic Modeling of Hydrogen under Conditions Found in Internal Combustion Engines

1998 ◽  
Vol 12 (1) ◽  
pp. 78-82 ◽  
Author(s):  
N. M. Marinov ◽  
H. J. Curran ◽  
W. J. Pitz ◽  
C. K. Westbrook
Keyword(s):  
Kinetic Modeling ◽  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Chemical Kinetic ◽  
Combustion Engines

Kinetic Modeling of Knock Properties in Internal Combustion Engines

2006 ◽  
Author(s):  
M. Mehl ◽  
T. Faravelli ◽  
E. Ranzi ◽  
T. Lucchini ◽  
A. Onorati ◽  
...  
Keyword(s):  
Kinetic Modeling ◽  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Combustion Engines

scholarly journals Development and Validation of a Reduced DME Mechanism Applicable to Various Combustion Modes in Internal Combustion Engines

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Gregory T. Chin ◽  
J.-Y. Chen ◽  
Vi H. Rapp ◽  
R. W. Dibble
Keyword(s):  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Combustion Engines ◽  
Detailed Mechanism ◽  
Reduced Mechanism ◽  
Hcci Combustion ◽  
Combustion Modes ◽  
Reduced Chemistry ◽  
Wide Range ◽  
Development And Validation

A 28-species reduced chemistry mechanism for Dimethyl Ether (DME) combustion is developed on the basis of a recent detailed mechanism by Zhao et al. (2008). The construction of reduced chemistry was carried out with automatic algorithms incorporating newly developed strategies. The performance of the reduced mechanism is assessed over a wide range of combustion conditions anticipated to occur in future advanced piston internal combustion engines, such as HCCI, SAHCCI, and PCCI. Overall, the reduced chemistry gives results in good agreement with those from the detailed mechanism for all the combustion modes tested. While the detailed mechanism by Zhao et al. (2008) shows reasonable agreement with the shock tube autoignition delay data, the detailed mechanism requires further improvement in order to better predict HCCI combustion under engine conditions.

Investigation of real gas effects on combustion and emissions in internal combustion engines and implications for development of chemical kinetics mechanisms

2017 ◽  
Vol 19 (3) ◽  
pp. 269-281 ◽  
Author(s):  
Zongyu Yue ◽  
Randy Hessel ◽  
Rolf D Reitz
Keyword(s):  
Equation Of State ◽  
Shock Tube ◽  
Internal Combustion Engines ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Chemical Kinetic ◽  
Combustion Engines ◽  
Real Gas ◽  
Real Gas Effects ◽  
Robinson Equation

Real gas effects on combustion and emissions in internal combustion engines are investigated using three-dimensional computational fluid dynamics. The Peng–Robinson equation of state is implemented to describe pressure–volume–temperature relationships and to calculate thermodynamic properties and relevant partial derivatives. Four facilities are modeled, including non-reacting compression in a motoring engine, combustion in a conventional diesel combustion engine and in a reactivity controlled compression ignition engine, as well as for a non-reacting reflected wave in a shock tube. It is found that the real gas effects of gas mixtures in practical internal combustion engine operation are sensitive to the operating load and the amount of premixed fuel. Excellent agreement against experiments was found for engine simulations with the Peng–Robinson equation of state in terms of cylinder pressure and apparent heat release rate. However, discrepancies with predictions from the ideal gas law grow with increased load and larger amounts of premixed fuel. In particular, the predicted emissions of soot, NOx, CO and unburnt hydrocarbons show increasing sensitivity to real gas effects as a result of changes in combustion phasing. Fuel condensation is also modeled using a vapor–liquid phase equilibrium solver and significant dependency on the equation of state used is found. Therefore, it is recommended to include real gas effects in internal combustion engine modeling to capture combustion and emissions characteristics accurately. Additionally, the results emphasize the role of real gas effects on reaction rates. Shock tube simulations are used to demonstrate the importance of using the real gas equation of state in the interpretation of chemical kinetic measurements. Significantly different compressed gas temperatures behind the reflected shock are predicted when real gas effects are considered. This needs to be realized when developing chemical kinetic models and rate constants for engine applications from shock tube data.

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