This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Effect of Fuel Characteristics on the Fuel Injection Process in a CI Engine Fuelled on Diesel and DME
Technical Paper
2007-24-0119
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The pressure of the fuel line and the injector spray patterns of a compression ignition engine fuelled on diesel and dimethyl ether (DME) were investigated. A naturally aspirated four stoke compression ignition engine was used for the research, with injection timing and injector opening pressure set for diesel operation. It was found that as a result of the lower bulk modulus of DME, injection occurred later than in the case of diesel fuelling. As a consequence ignition also occurred later. Analysis of the injector spray patterns revealed that when DME was injected, the sprays spread widely, and had a shorter liquid penetration than diesel. The sprays resembled those of a gas spray, as a result of its rapid evaporation. As the injector pressure was increased the sprays were found to narrow. The viscosity of DME is much lower than that of diesel, with the result that at the higher pressures DME was found to leak prior to injection.
Recommended Content
Authors
Citation
Cipolat, D., "The Effect of Fuel Characteristics on the Fuel Injection Process in a CI Engine Fuelled on Diesel and DME," SAE Technical Paper 2007-24-0119, 2007, https://doi.org/10.4271/2007-24-0119.Also In
References
- Cipolat, D. Study of Injector Spray patterns and Comparisons of NO X Emissions for a CI Engine Fuelled on Diesel and DME Proceedings of the 10th International Conference on Liquid Atomization and Spray Systems 27 August 1 September 2006 Kyoto, Japan
- Seong, B. Cho, S. Lee, B. Lee, D. Injection Characteristics of a DME Fuel with an In-line Pump. Proceedings of the JSAE 20045640, Fall Conference 2004
- Sato, Y. Nozaki, S. Noda, T. The Performance of a Diesel Engine for Light Duty Truck Using a Jerk Type In-Line DME Injection System SAE 2004-01-1862
- Christensen, R. Sorenson, S.C. Jensen, M.G. Hansen, K.F. Engine Operation on Dimethyl Ether in a Naturally Aspirated, DI Diesel Engine SAE 971665 1997
- Yu, J. Bae, C. Dimethyl ether spray characteristics in a common-rail fuel injection system Journal of Automobile Engineering, Proc. IMechE 217 12 D 2003
- Kato, M. Takeuchi, H. Koie, K. Sekijima, H. Kajitani, S. Chen, Z.L. Hashimoto, S. A Study of Dimethyl Ether Flow in Diesel Nozzle SAE 2004-01-0081 2004
- Kapus, P. Ofner, H. Development of Fuel Injection Equipment and Combustion System for DI Diesels Operated on Dimethyl Ether SAE 950062 1995
- Teng H. McCandless, J.C. Comparative study of Characteristics of Diesel-Fuel and Dimethyl-Ether Sprays in the Engine SAE 2005-01-1723 2005
- Yang, S Kim, Y. Lee Y. J. Studies on the Optimization with Regard to Relationships between Performance and Emission Characteristics in DME Fuelled Engines Using Common Rail Injection Systems JSAE 20030259 2003
- Sorensen, S.C Mikkelsen, S-E. Performance and Emissions of a 0.273 Liter Direct Injection Diesel Engine Fuelled with Neat Dimethyl Ether SAE 950064 1995