An Investigation on Injection Characteristics of Direct-Injected Heavy Duty Diesel Engine by Means of Multi-Zone Spray Modeling

The purpose of this study is to investigate the effect of injection parameters on a heavy duty diesel engine performance and emission characteristics. In order to analyze the injection and spray characteristics of diesel fuel with employing high-pressure common-rail injection system, the injection characteristics such as injection delay, injection duration, and injection rate and number of nozzle holes were investigated by using a quasi-dimensional model. In the present work, the variety of injection rate is performed at various injection parameters where as performance and emission of the engine will be simulated subsequently. Finally the best injection system for a high efficiency and low NOx emission heavy duty diesel engine was investigated

An Investigation on Injection Characteristics of Direct-Injected Heavy Duty Diesel Engine by Means of Multi-Zone Spray Modeling Étude sur les caractéristiques d’injection d’un moteur Diesel industriel à injection directe au moyen de la modélisation multi-zones de la pulvérisation

The purpose of this study is to investigate the effect of injection parameters on a heavy duty diesel engine performance and emission characteristics. In order to analyze the injection and spray characteristics of diesel fuel with employing high-pressure common-rail injection system, the injection characteristics such as injection delay, injection duration, and injection rate and number of nozzle holes were investigated by using a quasi-dimensional model. In the present work, the variety of injection rate is performed at various injection parameters where as performance and emission of the engine will be simulated subsequently. Finally the best injection system for a high efficiency and low NOx emission heavy duty diesel engine was investigated. Le but de cette étude est d’étudier l’effet des paramètres d’injection sur les caractéristiques de performance et d’émissions d’un moteur Diesel industriel. Afin d’analyser les caractéristiques d’injection et de pulvérisation du gazole assurées par un système d’injection “common-rail” haute pression, les paramètres d’injection tels que le calage de l’injection, la durée de l’injection, le taux d’injection et le nombre de trous de l’injecteur ont été étudiés en utilisant un modèle quasi-dimensionnel. Dans l’étude présentée, les performances et les émissions du moteur sont simulées à différents taux d’injection en faisant varier des paramètres d’injection. Enfin, la meilleure définition du système d’injection a été recherchée pour obtenir un moteur Diesel industriel avec un haut rendement et de basses émissions de NOx