This content is not included in your SAE MOBILUS subscription, or you are not logged in.
CI Methanol and Ethanol combustion using ignition improver
ISSN: 0148-7191, e-ISSN: 2688-3627
Published December 19, 2019 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
To act on global warming, CO2 emissions must be reduced. This will require a reduction in the use of fossil fuels for transportation. Because of the large quantities of fossil fuels used in transportation, sources of renewable fuels other than biomass will have to be explored, such as electrofuels synthesized from CO2 using renewable electricity. Potential electrofuels include methanol and ethanol, which have shown promising results in SI engines. However, their low cetane numbers make these fuels unsuitable for CI engines because of their poor auto-ignition qualities. The main objective of this study was to evaluate the viability of using methanol and ethanol in CI engines at compression ratios of 16.7 and 20 with a pilot-main injection strategy in the PPC/CI regime. Single cylinder engine tests on a heavy duty engine were performed under medium load conditions (1262 rpm and 172 Nm). The higher compression ratio generated significantly better indicated thermal efficiencies, lower brake-specific NOx emissions, and less combustion noise. Soot emissions were well below current tailpipe emission limits in all cases.
CitationMichael, S., Timothy, B., Ingemar, D., and Bengt, J., "CI Methanol and Ethanol combustion using ignition improver," SAE Technical Paper 2019-01-2232, 2019, https://doi.org/10.4271/2019-01-2232.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
|[Unnamed Dataset 2]|
|[Unnamed Dataset 3]|
|[Unnamed Dataset 4]|
|[Unnamed Dataset 5]|
|[Unnamed Dataset 6]|
- V. Masson-Delmotte, P. Zhai, H. O. Pörtner, D. Roberts, J. Skea, P.R. Shukla,A. Pirani, W. Moufouma-Okia, C. Pèan, R. Pidcock, S. Connors, J. B. R. Matthews, Y. Chen, X. Zhou, M. I. Gomis, E. Lonnoy, T. Maycock, M. Tignor, T. Waterfield (eds.), “Global warming of 1.5°C. An IPCC Special Report on the impacts of global warming of 1.5°C above pre-industrlal levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty”, IPCC, In Press, 2018.
- Tunèr, M., Aakko-Saksa, P., Molander, P, “SUMMETH - Sustainable Marine Methanol Dellverable D3.1 Englne Technology, Research, and Development for Methanol in Internal Combustion Engines”, SUMMETH, 2018.
- Brynolf, S., Taljegard, M., Grahn, M., Hansson, J., “Electrofuels for the transport sector: A review of production costs”, Renewable and Sustainable Energy Revlews http://doi.org/10.1016/j.rser.2017.05.288, 2018.
- Tuner, M., “Review and Benchmarking of Alternatlve Fuels ln Conventlonal and Advanced Englne Concepts wlth Emphasis on Efficiency, CO2 , and Regulated Emissions”, SAE Technical Paper, 2016, http://doi.org/10.4271/2016-01-0882.
- Barbosa, F. C., “Heavy Duty Ethanol Engines - A Sustainable Approach for Transit Bus Fleets,” SAE Technlcal Paper, 2015, doi: 10.4271/2015-360223.
- Vallinayagam, R., Vedharaj, S., Yang, W. M., Roberts, W.L., et.al., “Feasibility of using less viscous and lower cetane(LVLC) fuels in a diesel engine: A review,” Renewable and Sustainable Energy Reviews, 2015, doi:10.1016/j.rser.2015.07.042.
- Saitoh, H. and Uchida, K., “On the Main Factors Governing Auto-Ignitlon Phenomenon of Alcohol Spray - A Study from the Vlew Point of Fuel Properties -,"SAE Int. J. Fuels Lubr. 2(1):911-920, 2009.
- Siebers, D. and Edwards, C., "Autoignition of Methanol and Ethanol Sprays under Dlesel Englne Conditions," SAE Technlcal Paper 870588, 1987, https://doi.org/10.4271/870588.
- Green, C., Cockshutt, N., and King, L., "Dimethyl Ether as a Methanol Ignition Improver: Substitution Requirements and Exhaust Emissions Impact," SAE Technical Paper 902155, 1990.
- Murayama, T., Chikahisa, T., Guo, J., and Miyano, M., "A Study of a Compresslon Ignition Methanol Engine with Converted Dimethyl Ether as an Ignition Improver," SAE Technical Paper 922212, 1992.
- Strömberg, J., “Bloethanol In heavy duty transport”, Paper presented at the 20th International Symposium on Alcohol Fuels (ISAF), Stellenbosh, South Afrlca, 2013.
- Simonsen, H. and Chomiak, J., "Testing and Evaluation of Ignition Improvers for Ethanol in a DI Dlesel Engine," SAE Technlcal Paper 952512, 1995.
- Chumueang, R., Laoonual, Y., and Chollacoop, N., "Effects of Injection Timing and Injection Pressure on Combustion Characteristics and Emissions of Ethanol ED95 under Partially Premlxed Combustion Condition," SAE Technlcal Paper 2015-32-0826, 2015.
- Saccullo, M., Benham, T., and Denbratt, I., "Dual Fuel Methanol and Diesel Direct Injection HD Single Cylinder Engine Tests," SAE Technlcal Paper 2018-01-0259, 2018
- EU Commission, “COMMISSION REGULATION (EU) No 582/2011 of 25 May 2011 - Heavy Duty”, Official Journal of the European Union, L 167, 1, 2011.