Effect of Exhaust Gas Recirculation on Homogeneous Charge Compression Ignition combustion model in Diesel Engine

Abstract

In this study, the modeling of the effect of exhaust gas recirculation on Homogenous Charge Compression Ignition (HCCI) in Diesel Engine has been investigated. The efficiency and emission reduction of the engine were an important point of view from study charge compression ignition. Furthermore, the greater adoption of the diesel engine has been inhibited by the increasing public awareness on pollution as well as the rising cost associated with the relatively high number of particulate matter (PM) and oxides of nitrogen (NOx) of its emission. The increase of compression-ignition (CI) engine fuel efficiency accompanied by lower emissions has encouraged intensive studies on the improvements of the diesel engine. In this paper, we describe the recent progress achieved in the research of advanced combustion and fuels to improve the fuel efficiency of diesel or CI engines. An Exhaust Gas Recirculation (EGR) system was arranged to be fitted in the engine. The study on the prospect of EGR application in lowering the engine-out NOx emissions in a heavy-duty diesel engine has been conducted by employing a refined 1D fluid-dynamic engine model generated in Boost Software Tools and the control of engine cycle parameters. The conclusion show that the engine with an opening valve of exhaust gas recirculation 0.3 and a compression ratio of 20 generated the highest volumetric efficiency.