Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study on Performance and Simultaneous Reduction of Smoke and NOx Emission by an DMM Addition and Application of EGR Method in a Diesel Engine

디젤기관에세 DMM 첨가와 EGR 방법 적용에 의한 기관성능 및 매연과 NOx의 동시저감 연구

  • 오영택 (전북대학교 기계공학과, 전북대학교 부설 공학연구원 공업기술연구센터) ;
  • 최승훈 (전북대학교 기계공학부)
  • Published : 2006.03.01
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Abstract

Dimethoxy methane$(CH_3-O-CH_2-O-CH_3)$, also known as methylal or DMM, is an oxygenated additive that contains 42.5% oxygen by weight and is soluble in diesel fuel. It is a colorless liquid and a gas-to-liquid chemical 방tat has been evaluated for use as a diesel fuel component. Experiments were conducted by using the five blends with different volumetric percentage of DMM(2.5, 5, 7.5, 10, and 12.5%) in baseline diesel fuel. The test engine was single cylinder, four stroke, DI diesel engine unmodified. Also, data was collected for steady state operation at 24 engine speed-load conditions. The focus of this study was to investigate the effects of the addition of oxygenated fuel to diesel fuel on the engine-out emissions and the performance. Smoke emissions of all DMM blends were reduced substantially in comparison with conventional diesel fuel. These results indicate that DMM may be an effective blendstock for diesel fuel as an environment-friendly alternative fuel. Besides, this study showed that simultaneous reduction of smoke and NOx emissions could be achieved by oxygenated fuel and EGR method that was applied to decrease NOx emissions increasing with smoke emissions reduction.

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References

  1. Akasaka, Y. and Sakurai, Y., 1994, 'Effects of Oxygenated Fuel and Cetane Improver on Exhaust Emissions from Heavy-Duty DI Diesel Engines,' SAE Paper No. 942023
  2. Liotta, Jr. F. J. and Montalvo, D. M., 1993, 'The Effect of Oxygenated Fuels on Emissions from a Modern Heavy-Duty Diesel Engine,' SAE Paper No. 932734
  3. Matthew, S. and Thomas, L., 1999, 'Effects of Structure and Boiling Point of Oxygenated Blending Compounds in Reducing Diesel Emissions,' SAE Paper No. 01-1475
  4. Oh, Y. T. and Choi, S. H., 2002, 'An Experimental Study on Analyses and Exhaust Emission Characteristics with EGBE Addition in D.I. Diesel Engine,' Transaction of the KSME(B), Vol. 26, No. 3, pp. 498~506
  5. Sirman, M., Owens, E. and Whitney, K., 1998, 'Emissions Comparison of Alternative Fuels in an Advanced Automotive Diesel Engine,' Southwest Research Institute Report for DOE and US Army TARDEC, Interim Report TFLRF, No. 338
  6. Nakajima, Y., Sugihara, K. and Muranaka, S., 1981, 'Effects of Exhaust Gas Recirculation on Fuel Consumption,' Proc. Instn. Mech. Engrs. Vol. 195, pp. 369-376 https://doi.org/10.1243/PIME_PROC_1981_195_037_02
  7. Choi, S. H. and Oh, Y. T., 2002, 'The Experimental Study on Emission Reduction by Oxygenate Additive in D.I. Diesel Engine,' Transaction of KASE, Vol. 10, No. 4, pp. 33-42