Wall wetting phenomena were investigated in a light-duty diesel optical engine operating under typical diesel particulate filter regeneration conditions through the use of liquid spray imaging during late-cycle post-injections. Three post-injection timings were explored: 1) an ‘early’ timing (44.5°aTDC) where high ambient temperatures and densities were expected to decrease the liquid penetration, 2) a ‘conventional’ timing (78.5°aTDC) that is typically used to produce the necessary aftertreatment regeneration exhaust conditions, and 3) a ‘late’ timing (133.5°aTDC) where in-cylinder flows generated by exhaust valve opening-induced blowdown can disrupt the liquid penetration. In addition to a 2007 US certification diesel fuel, a palm-derived B20 biodiesel blend and soy-derived B100 biodiesel were examined since liquid spray impingement is thought to worsen for biodiesel blends due to the higher fuel distillation temperature, density, and viscosity. No significant wall wetting was observed for the early post-injection. However, considerable impingement occurred for the conventional and late post-injections. Liquid penetration and the persistence of liquid fuel in the cylinder were found to increase with biodiesel content, while exhaust blowdown flows were ineffective in reducing the severity of wall wetting. Negligible distortion of jet structure was observed for the liquid spray at the late post-injection. Short pulse durations decreased the severity of liquid penetration with the soy-derived biodiesel during the early post-injection SOI, but were otherwise ineffective.
Skip Nav Destination
Sign In or Register for Account
ASME 2010 Internal Combustion Engine Division Fall Technical Conference
September 12–15, 2010
San Antonio, Texas, USA
Conference Sponsors:
- Internal Combustion Engine Division
ISBN:
978-0-7918-4944-6
PROCEEDINGS PAPER
Optical Investigation Into Wall Wetting From Late-Cycle Post-Injections Used for Diesel Particulate Filter Regeneration
Goran Bozic
,
Goran Bozic
University of New South Wales, Sydney, NSW, Australia
Search for other works by this author on:
Sanghoon Kook
,
Sanghoon Kook
University of New South Wales, Sydney, NSW, Australia
Search for other works by this author on:
Isaac W. Ekoto
,
Isaac W. Ekoto
Sandia National Laboratories, Livermore, CA
Search for other works by this author on:
Ben R. Petersen
,
Ben R. Petersen
Sandia National Laboratories, Livermore, CA
Search for other works by this author on:
Paul C. Miles
Paul C. Miles
Sandia National Laboratories, Livermore, CA
Search for other works by this author on:
Goran Bozic
University of New South Wales, Sydney, NSW, Australia
Sanghoon Kook
University of New South Wales, Sydney, NSW, Australia
Isaac W. Ekoto
Sandia National Laboratories, Livermore, CA
Ben R. Petersen
Sandia National Laboratories, Livermore, CA
Paul C. Miles
Sandia National Laboratories, Livermore, CA
Paper No:
ICEF2010-35075, pp. 507-516; 10 pages
Published Online:
January 10, 2011
Citation
Bozic, G, Kook, S, Ekoto, IW, Petersen, BR, & Miles, PC. "Optical Investigation Into Wall Wetting From Late-Cycle Post-Injections Used for Diesel Particulate Filter Regeneration." Proceedings of the ASME 2010 Internal Combustion Engine Division Fall Technical Conference. ASME 2010 Internal Combustion Engine Division Fall Technical Conference. San Antonio, Texas, USA. September 12–15, 2010. pp. 507-516. ASME. https://doi.org/10.1115/ICEF2010-35075
Download citation file:
Sign In
5
Views
0
Citations
Related Proceedings Papers
Related Articles
Optical Investigation Into Wall Wetting From Late-Cycle Post-Injections Used for Diesel Particulate Filter Regeneration
J. Eng. Gas Turbines Power (September,2011)
Performance and Emission Investigations of Jatropha and Karanja Biodiesels in a Single-Cylinder Compression-Ignition Engine Using Endoscopic Imaging
J. Energy Resour. Technol (January,2016)
Effects of B20 on Emissions and the Performance of a Diesel Particulate Filter in a Light-Duty Diesel Engine
J. Eng. Gas Turbines Power (November,2010)
Related Chapters
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)
Key Components of Liquid Cooled Systems
Thermal Design of Liquid Cooled Microelectronic Equipment
Control and Operational Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential