The operation and emissions of a four cylinder, passenger car common-rail diesel engine operating with two different fuels was investigated on the basis of exhaust-stream and in-cylinder soot measurements, as well as a thermodynamic analysis of the combustion process. The two fuels considered were a standard diesel fuel and a synthetic diesel (fuel two) with a lower aromatic content, evaporation temperature, and cetane number than the standard diesel. The exhaust-stream soot emissions, measured using a filter smoke number system, as well as a photo-acoustic soot sensor (AVL Micro Soot Sensor), were lower with the second fuel throughout the entire engine operating map. To elucidate the cause of the reduced exhaust-stream soot emissions, the in-cylinder soot temperature and the factor (proportional to concentration) were measured using miniature, three-color pyrometers mounted in the glow plug bores. Using the maximum factor value to quantify the soot formation process, it was seen that for all operating points, less soot was formed in the combustion chamber using the second fuel. The oxidation of the soot, however, was not strongly influenced by the fuel, as the relative oxidized soot fraction was not significantly different for the two fuels. The reduced soot formation of fuel two was attributed to the lower aromatic content of the fuel. The soot cloud temperatures for operation with the two fuels were not seen differ significantly. Similar correlations between the cylinder-out soot emissions, characterized using the pyrometers, and the exhaust-stream soot emissions were seen for both fuels. The combustion process itself was only seen to differ between the two fuels to a much lesser degree than the soot formation process. The predominant differences were seen as higher maximum fuel conversion rates during premixed combustion at several operating points, when fuel two was used. This was attributed to the lower evaporation temperatures and longer ignition delays (characterized by the lower cetane number) leading to larger premixed combustion fractions.
Skip Nav Destination
Article navigation
November 2010
Research Papers
Exhaust-Stream and In-Cylinder Measurements and Analysis of the Soot Emissions From a Common Rail Diesel Engine Using Two Fuels
Andrea Bertola
Andrea Bertola
Search for other works by this author on:
Patrick Kirchen
Peter Obrecht
Konstantinos Boulouchos
Andrea Bertola
J. Eng. Gas Turbines Power. Nov 2010, 132(11): 112804 (8 pages)
Published Online: August 16, 2010
Article history
Received:
October 12, 2009
Revised:
December 10, 2009
Online:
August 16, 2010
Published:
August 16, 2010
Citation
Kirchen, P., Obrecht, P., Boulouchos, K., and Bertola, A. (August 16, 2010). "Exhaust-Stream and In-Cylinder Measurements and Analysis of the Soot Emissions From a Common Rail Diesel Engine Using Two Fuels." ASME. J. Eng. Gas Turbines Power. November 2010; 132(11): 112804. https://doi.org/10.1115/1.4001083
Download citation file:
Get Email Alerts
Shape Optimization of an Industrial Aeroengine Combustor to reduce Thermoacoustic Instability
J. Eng. Gas Turbines Power
Dynamic Response of A Pivot-Mounted Squeeze Film Damper: Measurements and Predictions
J. Eng. Gas Turbines Power
Review of The Impact Of Hydrogen-Containing Fuels On Gas Turbine Hot-Section Materials
J. Eng. Gas Turbines Power
Effects of Lattice Orientation Angle On Tpms-Based Transpiration Cooling
J. Eng. Gas Turbines Power
Related Articles
Comparison of Filter Smoke Number and Elemental Carbon Mass From Partially Premixed Low Temperature Combustion in a Direct-Injection Diesel Engine
J. Eng. Gas Turbines Power (October,2011)
Effect of Biodiesel-Ethanol Blended Fuel Spray Characteristics on the Reduction of Exhaust Emissions in a Common-Rail Diesel Engine
J. Energy Resour. Technol (December,2010)
Effect of Swirl and Injection Pressure on Performance and Emissions of JP-8 Fueled High Speed Single Cylinder Diesel Engine
J. Eng. Gas Turbines Power (February,2012)
Performance and Combustion Characteristics of OM314 Diesel Engine Fueled With DME: A Theoretical and Experimental Analysis
J. Eng. Gas Turbines Power (September,2010)
Related Proceedings Papers
Related Chapters
Alternative Systems
Turbo/Supercharger Compressors and Turbines for Aircraft Propulsion in WWII: Theory, History and Practice—Guidance from the Past for Modern Engineers and Students
Determination of the Effects of Safflower Biodiesel and Its Blends with Diesel Fuel on Engine Performance and Emissions in a Single Cylinder Diesel Engine
International Conference on Software Technology and Engineering, 3rd (ICSTE 2011)
Outlook
Closed-Cycle Gas Turbines: Operating Experience and Future Potential