nitrogen oxides (nox) contribute to a wide range of environmental effects including the formation of acid rain and destroy ozone layer. in-cylinder high temperature flame and high oxygen concentration are the parameters which affect the nox emissions. the egr system is a very effective way for reducing nox emission from a diesel engine (via reduction of these parameters), particularly at the hi...

Recent development has renewed the interest in drivetrain concepts which gives a higher degree of freedom by disconnecting the engine and vehicle speeds. This freedom raises the demand for active control, which especially during transients is not trivial, but of which the quality is crucial for the success of the drivetrain concept. In this work the fuel optimal engine operating point trajector...

The tightening of diesel pollutant emission regulations has made Internal Combustion Engine (ICE) management through steady-state maps obsolete. To overcome the map’s scarce performance and efficiently manage engine, control systems must cope with ICE transient operations, coupling between its subsystem dynamics, tradeoff different requirements. work demonstrates effectiveness a reference gener...

In this paper, a novel mean-value exergy-based modeling framework for internal combustion engines is developed. The characterization of irreversibilities, thermal exchange between the in-cylinder mixture and cylinder wall, non-stoichiometric allows comprehensive description availability transfer destruction phenomena in engine. model applicable to operating both steady-state over sequence point...

To achieve a much more extensive intake air flow range of the diesel engine, a variable-geometry compressor (VGC) is introduced into a turbocharged diesel engine. However, due to the variable diffuser vane angle (DVA), the prediction for the performance of the VGC becomes more difficult than for a normal compressor. In the present study, a prediction model comprising an elliptical equation and ...

The objective of this paper is to study the effect coconut oil biodiesel (COB)-diesel blends on exhaust particulate matter (PM) emissions and fuel injection responses in an unmodified turbocharged four-stroke common-rail direct (CRDI) diesel engine. Characterization COB their has been conducted ascertain applicability these fuels for existing test used were fossil fuel, COB10, COB20, COB30 COB5...

Various methods are proposed in literature for the engine faults detection, based on the combination of simulation models with measured engine data. In order to be effective, these methods must be based, in author’s opinion, on detailed, reliable and validated simulation models, able to predict the faulty engine performance, by reproducing its actual work conditions. This is particularly import...