Assessment of energy performance and air pollutant emissions in a diesel engine generator fueled with water-containing ethanol-biodiesel-diesel blend of fuels

Wen Jhy Lee, Yi Cheng Liu, Francis Kimani Mwangi, Wei Hsin Chen, Sheng Lun Lin, Yasuhiro Fukushima, Chao Ning Liao, Lin Chi Wang

Research output: Contribution to journalArticle

91 Citations (Scopus)

Abstract

Biomass based oxygenated fuels have been identified as possible replacement of fossil fuel due to pollutant emission reduction and decrease in over-reliance on fossil fuel energy. In this study, 4v% water-containing ethanol was mixed with (65-90%) diesel using (5-30%) biodiesel (BD) and 1v% butanol as stabilizer and co-solvent respectively. The fuels were tested against those of biodiesel-diesel fuel blends to investigate the effect of addition of water-containing ethanol for their energy efficiencies and pollutant emissions in a diesel-fueled engine generator. Experimental results indicated that the fuel blend mix containing 4v% of water-containing ethanol, 1v% butanol and 5-30v% of biodiesel yielded stable blends after 30 days standing. BD1041 blend of fuel, which composed of 10v% biodiesel, 4v% of water-containing ethanol and 1v% butanol demonstrated -0.45 to 1.6% increase in brake-specific fuel consumption (BSFC, mLkW-1h-1) as compared to conventional diesel. The better engine performance of BD1041 was as a result of complete combustion, and lower reaction temperature based on the water cooling effect, which reduced emissions to 2.8-6.0% for NOx, 12.6-23.7% particulate matter (PM), 20.4-23.8% total polycyclic aromatic hydrocarbons (PAHs), and 30.8-42.9% total BaPeq between idle mode and 3.2kW power output of the diesel engine generator. The study indicated that blending diesel with water-containing ethanol could achieve the goal of more green sustainability.

Original languageEnglish
Pages (from-to)5591-5599
Number of pages9
JournalEnergy
Volume36
Issue number9
DOIs
Publication statusPublished - 2011 Sep
Externally publishedYes

Keywords

  • Biodiesel
  • Butanol
  • Diesel
  • Ethanol
  • NOx
  • PAHs

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Pollution
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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