Heavy-Duty Diesel Combustion With Ultra-Low NOx and SOOT Emissions~A Comparison Between Experimental Data and CFD Simulations
Paper in proceeding, 2005

Experiments were conducted with a single cylinder heavy duty research engine, based on the geometry of a Volvo Powertrain D12C production engine. For these tests the engine was configured with a low compression ratio, low swirl, common rail fuel injection system and an eight-orifice nozzle. The combustion process was visualized by video via an inserted endoscope. From the resulting images temperatures were evaluated with the two-color method. In addition, the combustion and emission formation were simulated using the multiple flamelet concept implemented in the commercial CFD code STAR-CD. The models used in this paper are considered state-of-the-art. The purpose of this paper is to demonstrate the possibilities offered by combining several methods in the evaluation of novel engine concepts. Therefore, results from the optical measurements, the CFD simulations and global emission experimental data were compared. Combining the methods shows a great opportunity to understand phenomena associated with new combustion concepts involving long ignition delay, low temperature, and ultra low emissions.

Author

Tobias Husberg

Chalmers, Applied Mechanics, Combustion and Multiphase Flow

Chalmers, Applied Mechanics

Ingemar Denbratt

Chalmers, Applied Mechanics, Combustion and Multiphase Flow

Johan Engström

Monica Ringvik

SAE World Congress

SAE Paper 2005-01-0380

Subject Categories

Mechanical Engineering

Energy Engineering

Fluid Mechanics and Acoustics

DOI

10.4271/2005-01-0380

More information

Latest update

12/16/2019