A two-zone control oriented SI-HCCI hybrid combustion model for the HIL engine simulation

A dynamic combustor model is developed for inclusion into a one-dimensional full gas turbine engine simulation code. A flux-difference splitting algorithm is used to numerically integrate the quasi-one-dimensional Euler equations, supplemented with species mass conservation equations. The combustion model involves a single-step, global finite-rate chemistry scheme with a temperature-dependent activation energy. Source terms are used to account for mass bleed and mass injection, with additional capabilities to handle momentum and energy sources and sinks. Numerical results for cold and reacting flow for a can-type gas turbine combustor are presented. Comparisons with experimental data from this combustor are also made.

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Enabling Air-Path Systems for Homogeneous Charge Compression Ignition (HCCI) Engine Transient Control

ASME 2009 Dynamic Systems and Control Conference, Volume 1 ◽

10.1115/dscc2009-2506 ◽

2009 ◽

Cited By ~ 7

Author(s):

Fengjun Yan ◽

Junmin Wang

Keyword(s):

Cost Effective ◽

Combustion Model ◽

Gas Temperature ◽

Independent Control ◽

Variable Geometry Turbocharger ◽

Hcci Engine ◽

Engine Simulation ◽

Hcci Combustion ◽

Transient Control ◽

Path System

This paper explores the possibility of using a cost-effective air-path system that includes a dual-loop (exhaust gas recirculation) EGR and a (variable geometry turbocharger) VGT to achieve independent control of the main in-cylinder charge conditions (i.e. in-cylinder oxygen, inert gas amounts, and gas temperature at the intake valve closing) for HCCI engine combustion transient operation. An engine simulation model consisting of the air-path system and a HCCI combustion model was developed and synthesized to evaluate the control authority of the air-path system on the in-cylinder charge conditions as well as their effects on combustion. A variety of simulations unveiled that such an air-path system can enable independent control of the main in-cylinder charge conditions and active compensation of the effects of the wall temperature variations on HCCI combustion.

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The Development and Application of a Diesel Ignition and Combustion Model for Multidimensional Engine Simulation

10.4271/950278 ◽

1995 ◽

Cited By ~ 281

Author(s):

Song-Charng Kong ◽

Zhiyu Han ◽

Rolf D. Reitz

Keyword(s):

Combustion Model ◽

Engine Simulation ◽

Ignition And Combustion

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Two-Zone Simulation of an Axial Vane Rotary Engine Cycle

International Journal of Applied Mechanics and Engineering ◽

10.2478/ijame-2021-0024 ◽

2021 ◽

Vol 26 (2) ◽

pp. 143-159

Author(s):

M. Mirzaei ◽

S.M. Hashemi ◽

B. Saranjam ◽

A. Binesh

Keyword(s):

Flame Temperature ◽

Mass Conservation ◽

Conservation Equation ◽

Combustion Model ◽

Engine Simulation ◽

Rotary Engine ◽

Positive Displacement ◽

Rotary Engines ◽

Minimum Number ◽

Mass Conservation Equation

Abstract An axial vane rotary engine (AVRE) is a novel type of rotary engines. The engine is a positive displacement mechanism that permits the four “stroke” action to occur in one revolution of the shaft with a minimum number of moving components in comparison to reciprocating engines. In this paper, a two-zone combustion model is developed for a spark ignition AVRE. The combustion chamber is divided into burned and unburned zones and differential equations are developed for the change in pressure and change in temperature in each zone. The modelling is based on equations for energy and mass conservation, equation of state, and burned mass fraction. The assumption is made that both zones are at the same pressure P, and the ignition temperature is the adiabatic flame temperature based on the mixture enthalpy at the onset of combustion. The developed code for engine simulation in MATLAB is applied to another engine and there is a good agreement between results of this code and results related to the engine chosen for validation, so the modelling is independent of configuration.

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Control Oriented Modeling and Nonlinear Model Predictive Control of Advanced SI Engine System

ASME 2010 Dynamic Systems and Control Conference, Volume 1 ◽

10.1115/dscc2010-4024 ◽

2010 ◽

Author(s):

Tae-Kyung Lee ◽

Zoran S. Filipi

Keyword(s):

Model Predictive Control ◽

Predictive Control ◽

Nonlinear Model ◽

Combustion Process ◽

Nonlinear Model Predictive Control ◽

Combustion Model ◽

Ic Engine ◽

Actuator Dynamics ◽

Engine Simulation ◽

Prediction Horizon

Control oriented model (COM) using crank-angle resolved flame propagation simulation and nonlinear model predictive control (NMPC) methodology for the purpose of transient control of HDOF engines are proposed in this paper. The nonlinear nature of the combustion process has been a challenge in building a reliable COM and engine simulation. Artificial neural networks (ANNs) are subsequently trained on the data generated with a quasi-D combustion model to create fast surrogate combustion models. System dynamics are augmented by manifold and actuator dynamics models. Then, NMPC for an internal combustion (IC) engine with a dual-independent variable valve timing (VVT) system is designed to achieve fast torque responses, to eliminate exhaust emissions penalty, and to track the optimal actuator response closely. The NMPC significantly improves engine dynamics and minimizes excursions of in-cylinder variables under highly transient operation. Dead-beat like control is achieved with selected prediction horizon and control horizon in the NMPC.

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A Two-Zone Multigrid Model for SI Engine Combustion Simulation Using Detailed Chemistry

Journal of Combustion ◽

10.1155/2010/201780 ◽

2010 ◽

Vol 2010 ◽

pp. 1-12 ◽

Cited By ~ 2

Author(s):

Hai-Wen Ge ◽

Harmit Juneja ◽

Yu Shi ◽

Shiyou Yang ◽

Rolf D. Reitz

Keyword(s):

Direct Injection ◽

Equation Model ◽

Gasoline Direct Injection ◽

Combustion Model ◽

Si Engine ◽

Detailed Chemistry ◽

Combustion Modeling ◽

Engine Simulation ◽

Engine Combustion ◽

Order Of Magnitude

An efficient multigrid (MG) model was implemented for spark-ignited (SI) engine combustion modeling using detailed chemistry. The model is designed to be coupled with a level-set-G-equation model for flame propagation (GAMUT combustion model) for highly efficient engine simulation. The model was explored for a gasoline direct-injection SI engine with knocking combustion. The numerical results using the MG model were compared with the results of the original GAMUT combustion model. A simpler one-zone MG model was found to be unable to reproduce the results of the original GAMUT model. However, a two-zone MG model, which treats the burned and unburned regions separately, was found to provide much better accuracy and efficiency than the one-zone MG model. Without loss in accuracy, an order of magnitude speedup was achieved in terms of CPU and wall times. To reproduce the results of the original GAMUT combustion model, either a low searching level or a procedure to exclude high-temperature computational cells from the grouping should be applied to the unburned region, which was found to be more sensitive to the combustion model details.

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Model-Based Assessment of Two Variable CAM Timing Strategies for HCCI Engines: Recompression vs. Rebreathing

ASME 2009 Internal Combustion Engine Division Spring Technical Conference ◽

10.1115/ices2009-76103 ◽

2009 ◽

Cited By ~ 18

Author(s):

Aristotelis Babajimopoulos ◽

V. S. S. Prasad Challa ◽

George A. Lavoie ◽

Dennis N. Assanis

Keyword(s):

Simulation Software ◽

Combustion Model ◽

Engine Simulation ◽

Engine Model ◽

Model Based ◽

Hcci Combustion ◽

All Speeds ◽

Operational Range ◽

Timing Strategies ◽

Variable Cam Timing

The paper discusses the development and application of a single-cylinder HCCI engine model within the framework of a 1-D engine simulation software (GT-Power®). The HCCI combustion model includes a predictive burn model based on the in-cylinder conditions, along with methods to estimate in-cylinder NOx production and ringing intensity. The validation of the model was done by comparing simulation results with available experimental data, highlighting the comparison between two different HCCI variable cam timing strategies (recompression and rebreathing). A comparative study of the two valve strategies was carried out with the validated model and the entire operational range of the strategies was compared and analyzed for the constraints that limit further load extension. Recompression was found to be more efficient than rebreathing in the low load operating region. However, the rebreathing strategy was found to span a wider operational range compared to recompression at all speeds.

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A Computational Model for the Study of Gas Turbine Combustor Dynamics

Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery ◽

10.1115/98-gt-342 ◽

1998 ◽

Author(s):

David M. Costura ◽

Patrick B. Lawless ◽

Steven H. Frankel

Keyword(s):

Gas Turbine ◽

Mass Conservation ◽

Single Step ◽

Combustion Model ◽

Reacting Flow ◽

Gas Turbine Combustor ◽

Splitting Algorithm ◽

Simulation Code ◽

One Dimensional ◽

Engine Simulation

A dynamic combustor model is developed for inclusion into a one-dimensional full gas turbine engine simulation code. A flux-difference splitting algorithm is used to numerically integrate the quasi-one-dimensional Euler equations, supplemented with species mass conservation equations. The combustion model involves a single-step, global finite-rate chemistry scheme with a temperature-dependent activation energy. Source terms are used to account for mass bleed and mass injection, with additional capabilities to handle momentum and energy sources and sinks. Numerical results for cold and reacting flow for a can-type gas turbine combustor are presented. Comparisons with experimental data from this combustor are also made.

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