Performance, emission, and combustion characteristics of twin-cylinder common rail diesel engine fuelled with butanol-diesel blends

Nitrogen oxides and smoke are the substantial emissions for the diesel engines. Fuels comprising high-level oxygen content can have low smoke emission due to better oxidation of soot. The objective of the paper is to assess the potential to employ oxygenated fuel, i.e., n-butanol and its blends with the neat diesel from 0 to 30% by volume. The experimental and computational fluid dynamic (CFD) simulation is carried out to estimate the performance, combustion, and exhaust emission characteristics of n-butanol-diesel blends for various injection timings (9 degree, 12 degree, 15 degree, and 18 degree) using modern twin-cylinder, four-stroke, common rail direct injection (CRDI) engine. Experimental results reveal the increase in brake thermal efficiency (BTE) by ~ 4.5, 6, and 8% for butanol-diesel blends of 10% (Bu10), 20% (Bu20), and 30% (Bu30), respectively, compared to neat diesel (Bu0). Maximum BTE for Bu0 is 38.4%, which is obtained at 12 degree BTDC; however, for Bu10, Bu20 and Bu30 are 40.19, 40.9, and 41.7%, which are obtained at 15 degree BTDC, respectively. Higher flame speed of n-butanol-diesel blends burn a large amount of fuel in the premixed phase, which improves the combustion as well as emission characteristics. CFD and experimental results are compared and validated for all fuel blends for in-cylinder pressure and nitrogen oxides (NOx), and found to be in good agreement. Both experimental and simulation results witnessed in reduction of smoke opacity, NOx, and carbon monoxide emissions with the increasing n-butanol percentage in diesel fuel.

• Record URL:
  • https://doi.org/10.1007/s11356-017-9956-7
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09441344
• Supplemental Notes:
  • © Springer-Verlag GmbH Germany 2017.
• Authors:
  • Lamani, Venkatesh Tavareppa
  • Yadav, Ajay Kumar
  • Gottekere, Kumar Narayanappa
• Publication Date: 2017-10

Language

• English

Media Info

• Media Type: Web
• Features: Figures; Photos; References; Tables;
• Pagination: pp 23351-23362
• Serial:
  • Environmental Science and Pollution Research
  • Volume: 24
  • Issue Number: 29
  • Publisher: Springer Berlin Heidelberg
  • ISSN: 0944-1344
  • EISSN: 1614-7499
  • Serial URL: https://www.springer.com/journal/11356

Subject/Index Terms

• TRT Terms: Combustion; Diesel engines; Engine performance; Fluid dynamics; Fuel mixtures; Pollutants
• Subject Areas: Energy; Environment; Transportation (General);

Filing Info

• Accession Number: 01684528
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 29 2018 9:35AM