In order to study the combustion process in a dual fuel direct injection compression ignition engine, a two-zone model has been developed. Two distinct zones of interest are gaseous fuel-air mixture z....
A second-law analysis is performed in both chambers of an indirect injection turbocharged diesel engine and the simulation program developed is used to study the second-law performance of the engine a....
An investigation on the effects of oxygen enriched combustion air on engine performance was extended to include the implications from the second law of thermodynamics. A unique feature of this investi....
This paper focuses on the modelling of the exhaust gas temperature of a spark ignition engine in order to propose a new and non-intrusive method of knock detection. A zero-dimensional model is develop....
In this paper, the authors have investigated a new neural network application for the determination of thermodynamic properties for various gases for internal combustion engines applications. The Neur....
As regulations become more stringent, transient fuel control becomes extremely important for meeting emissions requirements in a cost-effective manner. Significant modeling work has been performed for....
High frequency pressure oscillations are generated under knocking conditions within the combustion chamber of Spark Ignition engines. Although acoustic-oscillation model can give the natural frequenci....
The model has already been applied on an old technology, naturally aspirated HSDI Diesel engine and on a heavy-duty turbocharged DI one equipped with a high pressure PLN fuel injection system, and the....
As a first step toward better understanding of the effects of flame stretch on combustion rate in SI engines, the burning velocity of a premixed, spherical, laminar methane-air flame propagating freel....
The paper describes the development of a reduced kinetic scheme for the evaluation of the main chemical species (particularly NO and CO) in premixed turbulent flame and its application to a quasi-dime....
A procedure has been developed to build system level predictive models that incorporate physical laws as well as information derived from experimental data. In particular a soot model was developed, t....
A two zones combustion model suitable for the engine control design of common rail multi-jet Diesel engines is presented. The modeling approach is based on a semi-empirical two-zone combustion model c....
The paper is focused on the development of a fractal combustion model, included within a whole-engine one-dimensional model (1Dime code). An extensive validation is carried out through the comparison ....
A new approach within the well-known trade-off in combustion process simulations between computational efforts (and thus the capability for engine operating map calculations) on the one hand, and accu....
This paper focuses on the prediction of thermal losses and indicated performance in modern automotive engines. In a previous study, a complete simulation software was developed in order to both predic....
This paper reports on the global analysis of the EGR circuit in a HSDI diesel engine and its influence on engine transient operation. To achieve this, the employed methodology was a combination of exp....
A system-level, data driven model was developed to predict gas temperature in the exhaust manifolds of naturally aspirated spark ignited engines during vehicle operation. The model is based on data ga....
The increasing complexity of vehicle engine cooling systems results in additional system interactions. Design and evaluation of such systems and related interactions requires a fully coupled detailed ....
This paper presents a one-dimensional model for heat transfer in exhaust systems. Convective heat transfer in pipe flows under steady-state and transient conditions is studied. Analytical solution of ....
A realistic simulation of the wall heat transfer is an imperative condition for the accurate analysis and simulation of the working process of IC engines. Due to its simplicity in application, zero-di....