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ISSN: 2150-3621 Print
ISSN: 2150-363X Online
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DOI: 10.1615/InterJEnerCleanEnv.v6.i3
Pages: 166
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DOI: 10.1615/InterJEnerCleanEnv.v6.i3.30
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Article price - $35.00 |
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EXPERIMENTAL STUDY ON EMISSION CHARACTERISTICS OF DIESEL ENGINES WITH DIESEL FUEL BLENDED WITH DIMETHYL CARBONATE
C. S. Cheung
Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR
M. A. Liu
Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR
S. C. Lee
Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Hong Kong SAR
K. Y. Pan
School of Energy and Power Engineering, Xian Jiaotong University, China
ABSTRACT
In the present study, dimethyl carbonate (DMC) was blended with ultra-low sulphur diesel oil at different proportions, up to 30% by volume, and tested on a single cylinder direct-injection diesel engine, a 4-cylinder indirect-injection diesel engine, and a light-duty diesel vehicle to assess the effect of %DMC on fuel consumption and exhaust emissions. With an increase in %DMC, there was an increase in fuel consumption or a decrease in power output. Particulate emissions were measured with a scanning mobility particle sizer and an aerodynamic particle sizer. DMC was found to significantly reduce particulate emissions, both sub-micron and micron, but the reduction was not proportional to the %DMC in the blended fuel. Within addition to the reduction in particulate emissions, there was a slight decrease in NOx and a slight increase in CO. For HC, there was a reduction at 5%DMC but an increase at higher %DMC. A lug-down test on the light-duty diesel vehicle showed a significant reduction in smoke emission coupled with a reduction in power output of the vehicle. It can be concluded that dimethyl carbonate-blended diesel can effectively reduce particulate emission.
pages 239-253
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