Multidimensional Simulation of NO and Soot from D.I. Diesel Engines with Fuel Injection Rate Shaping
スポンサーリンク
概要
- 論文の詳細を見る
The multidimensional engine simulation code, FREC-3D (CI), has been used to elucidate the effects of injection rate and split injection on diesel combustion, NO, and soot emissions. The combustion submodel has been updated, including the ignition submodel previously based on a one-step global mechanism. In-cylinder NO and soot formations were predicted by a Zeldovich mechanism with a partial equilibrium assumption and Morel's soot formation with an oxidation submodel, respectively. In result, computations give good agreement between measured and predicted trends of in-cylinder pressure, and rate of heat release, and a trade-off relationship between NO and soot emissions at pilot injection with high pressure injection. Computations also show that a high turbulence kinetic energy caused by a higher initial combustion is retained at the late combustion stage after fuel injection, and promotes the soot oxidation process. Predictions made with split injection suggest that a combination of high pressure injection in conjunction with a short period in second pulse is effective to reduce soot emission.
- 一般社団法人日本機械学会の論文
- 2001-02-15
著者
-
Shimamoto Yuzuru
Department Of Mechnical Systems Engineering The University Of Shiga Prefecture
-
Shimamoto Yuzuru
Department Of Mechanical Engineering Kyoto University.
-
Yamane Koji
Department Of Mechnical Systems Engineering The University Of Shiga Prefecture
-
Yamane Koji
Department Of Mechanical Systems Engineering The Univ. Of Shiga Prefecture
関連論文
- A study on the formation of vertical vortex in the cylinder of an I.C. engine using CFD : Effect of intake valve closing timing
- Influence of the Connecting Passage of a Low Pressure Indicator on Recording
- Formation of Turbulent Eddies in Jet Diffusion Flames
- Turbulent Eddies in a Jet Flame as Visualized by a Laser Sheet Method
- Improvement in a droplet breakup model for numerical analysis of fuel sprays
- Numerical Prediction of Gas Flow in the Intake Ports of Four-Cycle Internal Combustion Engines : Improvement of Accuracy by Applying a Porosity Approach
- Numerical Prediction of Gas Flow in the Intake Ports of Four-cycle Internal Combustion Engines : 1st Report, Method of Numerical Analysis
- Numerical Simulation of Gas Flows in the Cylinders of Four-stroke Cycle Ergines : 1st Report, Analysis of the Process of Swirl Generation during Intake Stroke
- Multidimensional Simulation of NO and Soot from D.I. Diesel Engines with Fuel Injection Rate Shaping
- (3-08) Influence of Physical and Chemical Properties of Biodiesel Fuel on Injection, Combustion and Exhaust Emission Characteristics in a DI-CI Engine((AF-3)Alternative Fuels 3-Biomass Fuels and Fuel Design)
- Trends and Future of Biofuels