A Study on Engine Performance and Simultaneous Reduction of Smoke and NOx Emissions of DMM Fuel in Diesel Engines with EGR
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The fuel used in this study, DMM is an oxygen additive containing 42.5% oxygen by weight and dissolved in diesel fuel, also known as methyl alcohol or Dimethoxymethane (CH3-O-CH2-O-CH3). DMM, which is a colorless liquid, shows chemical characteristics of gas-liquid and is also used as a diesel fuel component. In this study, five mixtures were added to the common diesel fuel at DMM addition rates of 2.5, 5, 7.5, 10 and 12.5% by volume. A single cylinder, four strokes, DI diesel engine was used as the test engine. Experimental data were also collected at 24 engine speed-load conditions operating in steady state. The purpose of this experiment was to study the effect of the addition ratio of oxidized fuel mixed in diesel fuel on engine power and exhaust performance. When compared with the common diesel fuel, the exhaust of Smoke was substantially reduced in all DMM mixing ratios. These results indicate that DMM can be an effective blend of diesel fuel and is an environmentally friendly alternative fuel. This study also shows that smoke and NOx emissions can be reduced at the same time through the application of oxygen fuel and EGR.
Abstract
The fuel used in this study, DMM is an oxygen additive containing 42.5% oxygen by weight and dissolved in diesel fuel, also known as methyl alcohol or Dimethoxymethane (CH3-O-CH2-O-CH3). DMM, which is a colorless liquid, shows chemical characteristics of gas-liquid and is also used as a diesel fuel component. In this study, five mixtures were added to the common diesel fuel at DMM addition rates of 2.5, 5, 7.5, 10 and 12.5% by volume. A single cylinder, four strokes, DI diesel engine was used as the test engine. Experimental data were also collected at 24 engine speed-load conditions operating in steady state. The purpose of this experiment was to study the effect of the addition ratio of oxidized fuel mixed in diesel fuel on engine power and exhaust performance. When compared with the common diesel fuel, the exhaust of Smoke was substantially reduced in all DMM mixing ratios. These results indicate that DMM can be an effective blend of diesel fuel and is an environmentally friendly alternative fuel. This study also shows that smoke and NOx emissions can be reduced at the same time through the application of oxygen fuel and EGR.
참고문헌 (5)
- Effects of oxygenated fuel and cetane improver on exhaust emissions from heavy-duty DI diesel engines, "Y. Akasaka", SAE, ~, pp.SAE Paper, No. 942023 (1994)
- The Effect of Oxygenated Fuels on Emissions from a Modern Heavy-Duty Diesel Engine, "F. J. Liotta", SAE, ~, pp.SAE Paper, No. 932734 (1993)
- Effects of Structure and Boiling Point of Oxygenated Blending Compounds in Reducing Diesel Emissions, "S. Matthew", SAE, ~, pp.SAE Paper No. 1999-01-1475 (1999)
- Emissions Comparison of Alternative Fuels in an Advanced Automotive Diesel Engine, "M. Sirman", Southwest Research Institute Report for DOE and US Army TARDEC, ~, pp.Interim Report TFLRF No. 338 (1998)
- Y. Nakajima, "Effects of Exhaust Gas Recirculation on Fuel Consumption", Proceedings of the Institution of Mechanical Engineers, 195(1), pp.369~376 (1981)