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Multi-Zone Models of Combustion and Heat Transfer Processes in SI Engines
Technical Paper
2011-37-0024
ISSN: 0148-7191, e-ISSN: 2688-3627
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Language:
English
Abstract
The paper is focused on simulation of high-pressure part of
thermodynamic cycle in a four-stroke spark ignition engine. The
main author's ambition is to create the fast and sufficiently
accurate multi-zone simulating tool working on the basis of simple
quasi-dimensional method reflecting a real 3-D combustion chamber
geometry and using the specific approach to transfer and
transformation of species. The introduced procedure combines a
classical kinetic scheme with the flexible Holub's method for
chemical equilibrium to solve serious numerical issues resulting
from chemical kinetics itself. But for the present, the current
version model uses just fast chemical kinetics with direct
transformation of reactants to chemical equilibrium state. New code
is able to work in predictive or inverse mode as well.
Real 3-D combustion chamber geometry is taken into account by
means of in advance created geometrical characteristics to save a
computational time during the simulation. New tool, developed in
AutoLisp programming language environment, can be used for
evaluation of data tables with particular zone volumes and
combustion chamber total volume, areas of border surfaces between
zones and heat transfer areas between particular zones and parts
creating combustion chamber border.
The predictive model version is suitable for the usage inside
the environment of early-stage engine development systems, linking
the combustion chamber geometry with the rate of heat release
prediction, nitrogen oxides emissions and the future prediction of
knocking resistance. The boundary conditions for a preliminary
design of combustion chamber components and other combustion
chamber features are determined as well. Selected three-zone model
results concerning spark ignition version of AVIA engine are
presented here.
The inverse model version is to be combined with experimental
data to determine or verify the important fuel properties, namely
the turbulent flame velocity. In this case, one two-zone model
output using measured data from ŠKODA engine is presented.
Authors
Citation
Hvezda, J., "Multi-Zone Models of Combustion and Heat Transfer Processes in SI Engines," SAE Technical Paper 2011-37-0024, 2011, https://doi.org/10.4271/2011-37-0024.Also In
References
- Bozza, F. Gimelli, A. “A Comprehensive 1D Model for the Simulation of a Small-Size Two-Stroke SI Engine,” SAE Technical Paper 2004-01-0999 2004 10.4271/2004-01-0999
- Li, X. Mikulec, T. Dai, W. Qian, X. “A Generic Methodology for Chamber Flame Geometry Modeling,” SAE Technical Paper 2000-01-2797 2000 10.4271/2000-01-2797
- Lakshminarayanan, P. Dent, J. “Generalised Procedure for Flame and Combustion Chamber Surface Determination in S I Engines,” SAE Technical Paper 821223 1982 10.4271/821223
- Sung, N. Jun, S. “The Effect of Combustion Chamber Geometry in a SI Engine,” SAE Technical Paper 972996 1997 10.4271/972996
- Poulos, S. Heywood, J. “The Effect of Chamber Geometry on Spark-Ignition Engine Combustion,” SAE Technical Paper 830334 1983 10.4271/830334
- Macek, J. Steiner, T. “ Advanced Multizone Multidimensional Models of Engine Thermoaerodynamics” 21th CIMAC Congress 1995 Interlaken 1995
- Conte, E. Boulouchos, K. “A Quasi-Dimensional Model for Estimating the Influence of Hydrogen-Rich Gas Addition on Turbulent Flame Speed and Flame Front Propagation in IC-SI Engines,” SAE Technical Paper 2005-01-0232 2005 10.4271/2005-01-0232
- Tinaut, F. Melgar, A. Horrillo, A. “Utilization of a Quasi-Dimensional Model for Predicting Pollutant Emissions in SI Engines,” SAE Technical Paper 1999-01-0223 1999 10.4271/1999-01-0223
- Tinaut, F. Giménez, B. Horrillo, A. Cabaco, G. “Use of Multizone Combustion Models to Analyze and Predict the Effect of Cyclic Variations on SI Engines,” SAE Technical Paper 2000-01-0961 2000 10.4271/2000-01-0961
- Jensen, T. Schramm, J. “A Three-Zone Heat Release Model for Combustion Analysis in a Natural Gas SI Engine. -Effects of Crevices and Cyclic Variations on UHC Emissions,” SAE Technical Paper 2000-01-2802 2000 10.4271/2000-01-2802
- AI-Himyary, T. Karim, G. “A Diagnostic Two-Zone Combustion Model for Spark-Ignition Engines Based on Pressure-Time Data,” SAE Technical Paper 880199 1988 10.4271/880199
- Hajireza, S. Sundén, B. Mauss, F. “A Three-Zone Model for Investigation of Gas Behavior in the Combustion Chamber of SI Engines in Relation to Knock,” SAE Technical Paper 1999-01-0219 1999 10.4271/1999-01-0219
- “ GT-Power, User's Manual and Tutorial” GT-Suite TM version 6.2. Gamma Technologies Inc. 2006
- Macek, J. “Současné Řešení Chemické Kinetiky a Rovnováhy” Faculty of Mechanical Engineering, Czech Technical University in Prague Prague 2008
- Metghalchi, M. Keck, J. C. “Laminar Burning Velocity of Propane-Air Mixtures at High Temperature and Pressure” Combustion and Flame New York 1980
- Holub, R. “Chemická Rovnováha Plynných Reakcí” Academia Praha 1972
- Bečka, J. “Programování pro CAD I” Vydavatelství ČVUT Praha 1996
- Vávra, J. Macek, J. Vítek, O. Takáts, M. “Investigation of Radial Turbocharger Turbine Characteristics under Real Conditions,” SAE Technical Paper 2009-01-0311 2009 10.4271/2009-01-0311
- Heywood, J. B. “ Internal Combustion Engine Fundamentals” McGraw-Hill London 1988