On the Potential of Oxygenated Fuels as an Additional Degree of Freedom in the Mixture Formation in Direct Injection Diesel Engines

The current and future restrictions on pollutant emissions from internal combustion engines require a holistic investigation of the abilities of alternative fuels to optimize the combustion process and ensure cleaner combustion. In this regard, the Tailor-made Fuels from Biomass (TMFB) Cluster at Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University aims at designing production processes for biofuels as well as fuels optimal for use in internal combustion engines. The TMFB Cluster's scientific approach considers the molecular structure of the fuels as an additional degree of freedom for the optimization of both the production pathways and the combustion process of such novel biofuels. Thus, the model-based specification of target parameters is of the utmost importance to improve engine combustion performance and to send feedback information to the biofuel production process. In particular, computational fluid dynamics is used to underscore the role of the thermo-physical properties on the soot emissions in internal combustion engines. Utilizing a preliminary established sensitivity analysis, it was possible to identify C8 straight chain oxygenated molecules as the optimal candidate for the inherent reduction of soot emissions within the mixture formation process. Additionally, the Oxidation Potential Number (OPN) is presented as a new indicator of the inherent soot reduction inside diesel spray plumes.

• Record URL:
  https://doi.org/10.4271/2015-01-0890
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/19463952
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Graziano, Barbara
  • Kremer, Florian
  • Pischinger, Stefan
  • Heufer, Karl Alexander
  • Rohs, Hans
• Conference:
  • SAE 2015 World Congress & Exhibition
  • Location: Detroit Michigan, United States
  • Date: 2015-4-21 to 2015-4-23
• Publication Date: 2015-4-14

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References;
• Pagination: pp 62-79
• Serial:
  • SAE International Journal of Fuels and Lubricants
  • Volume: 8
  • Issue Number: 1
  • Publisher: SAE International
  • ISSN: 1946-3952
  • EISSN: 1946-3960
  • Serial URL: https://www.sae.org/publications/collections/content/E-JOURNAL-04/

Subject/Index Terms

• TRT Terms: Alternate fuels; Biomass fuels; Combustion; Diesel engines; Environmental impacts; Fluid dynamics; Fuel injection; Internal combustion engines; Pollutants
• Subject Areas: Energy; Environment; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01621074
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2015-01-0890
• Files: TRIS, SAE
• Created Date: Jan 5 2017 4:23PM