Effects of Biodiesel from Soybean Oil on the Exhaust Emissions of a Turbocharged Diesel Engine

Effects of Biodiesel on Exhaust Emissions of Diesel Engine

Authors

  • Asad Naeem Shah School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, P.R. China
  • G. E. Yun- shan School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, P.R. China
  • TAN Jian- wei School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, P.R. China
  • He Chao School of Transportation, Mechanical and Civil Engineering, Southwest Forestry College, Kunming, 650224, P.R. China

Keywords:

diesel engine, direct injection, biodiesel, heat release rate, regulated emissions

Abstract

This paper presents the regulated emissions in the light of cylinder pressure and heat release rate (HRR) from a 4-stroke direct injection (DI) diesel engine fuelled with neat soybean oil-based biodiesel, commercial diesel and 20% biodiesel-diesel blend. The engine was run using electrical dynamometer at four different engine conditions. The experimental results revealed that brake power (BP) of the engine decreased but brake specific fuel consumption (BSFC) increased with biodiesel as compared to diesel. Relative to diesel, the maximum combustion pressure (MCP) was higher; however, HRR curves were not much deeper in the ignition delay (ID) periods and the premixed combustion peaks were lower with biodiesel. Carbon monoxide (CO), total hydrocarbons (HC), smoke opacity, and particulate matter (PM) emissions decreased by 3% to 14%, 32.6% to 46%, 56.5% to 83%, and 71% to 87.8%, respectively; however, oxides of nitrogen (NO ) increased by 2% to 10% with biodiesel, compared to the commercial diesel. Both smoke and NO pollutants were greatly influenced by the MCP. CO, HC, and PM emissions were higher at lower load conditions compared to higher load conditions, but NO  and smoke pollutants were higher at higher load  conditions relative to lower load conditions.

 

 

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Published

2009-08-31

How to Cite

Shah, A. N., shan, G. . E. Y.-., wei, T. J.-., & Chao, H. (2009). Effects of Biodiesel from Soybean Oil on the Exhaust Emissions of a Turbocharged Diesel Engine: Effects of Biodiesel on Exhaust Emissions of Diesel Engine. Biological Sciences - PJSIR, 52(4), 217–227. Retrieved from https://v2.pjsir.org/index.php/biological-sciences/article/view/550