Effective Reduction of Emissions of a DI Diesel Engine fuelled with Biodiesel and Diesel Blends with Oxygenated Additives

Authors

  • Amba Prasad Rao Associate Professor, Dept.of Mech.Engg. NIT Warangal
  • U. S. Vara Prasad
  • K. Madhu Murthy

Keywords:

Biodiesel, blends, ethanol, di-ethyl ether, eco-friendly engine operation

Abstract

 

Fatty acid methyl ester, popularly called biodiesel, has become more prominent alternate fuel for diesel engines on the basis of single-fuel concept. Since use of neat biodiesel on a large scale is raising certain constraints, both in terms of long-term availability of feed stock, fertile land and high NOx emissions, biodiesel is being adopted in blended form with petro-diesel fuel as B20 or B40. However, the HC and NOx emissions of these blends are still on the higher side. The present work aims at experimental evaluation of a single-cylinder water-cooled diesel engine by adopting different amounts of ethanol and di-ethyl ether blends in order to further improve performance and emission characteristics of blends. Besides employing these oxygenated additives, simultaneous influence of fuel injection pressure is also investigated to arrive at the optimum blend for the chosen engine configuration. Higher brake-specific fuel consumption values are realized with these additives compared to pure diesel fuel operation of the engine; however, significant reduction in gaseous emissions is obtained.

Keywords: Biodiesel, blends, ethanol, di-ethyl ether, eco-friendly engine operation

 

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Published

2012-08-20

Issue

Vol. 3 No. 2 (2012)

Section

Research Article

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