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논문 상세정보

커먼레일 분사장치를 이용한 Dimethyl Ether와 디젤연료의 연소특성

Combustion Characteristics of Dimethyl Ether (DME) and Diesel Fuel Using a Common-rail Fuel Injection System

Abstract

The combustion and emission characteristics of a direct injection CI engine fuelled with DME(Dimethyl Ether) and diesel fuel were compared at idle engine speed(800 rpm) with various injection parameters. An optical single cylinder diesel engine equipped with a common-rail fuel injection system was constructed to investigate combustion processes of DME and diesel fuel. The combustion images were recorded with a high-speed video camera system. The results demonstrated that the DME-fuelled engine was superior to the conventional diesel engine in terms of engine performance and emissions. The optimal injection timing of DME was located around IDC(Top Dead Center), which was roughly same as that of diesel fuel. As the injection timing was advanced much earlier than TDC, NOx (Nitric Oxides) level increased considerably. NOx emission of DME was equal or a little higher than that for diesel fuel at the same injection pressure and timing because of higher evaporation characteristics of DME. Throughout all experimental conditions, DME did not produce any measurable smoke level.

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참고문헌 (7)

  1. R. Verbeek and J. Van der Weide, 'GlobalAssessment of Dimethyl Ether Comparisonwith Other Fuels,' SAE 971607, 1997 
  2. Y. Sato, A. Noda, T. Sakamoto and Y. Goto,'Performance and Emission of a DI DieselEngine Operated on Dimethyl Ether ApplyingEGR with Supercharging,' SAE 2000-01-1809, 2000 
  3. S. Kajitani, 'Fundamental Research of DMEDiesel Engine Operated with a Common RailInjection System,' 14th ISAF, 2002-VT-13, 2002 
  4. H. Teng, J. C. McCandless and J. B. Schneyer, 'Compression Ignition Delay (Physica1+Chemical) of Dimethyl Ether,' SAE 2003-01-0759, 2003 
  5. S. Kajitani, Z. L. Chen, M. Kono and K. T.Rhee, 'Engine Performance and Exhaust Cha-racteristics of Direct Diesel Engine Operatedwith DME,' SAE 972973, 1997 
  6. S. H. Nam, Y. K. Kim and Y. J. Lee, 'Effect of Cooled-EGR on the Emission Characteristics of DI DME Fuelled Engine,' pp. 203-209, 2003 KSAE Sping Conference, 2003 
  7. Z. Lonbao, W. Hewu, J. Deming and H.Zuohua, 'Study of Performance and Combus-tion Characteristics of a DME-Fuelled Light-duty Direct-injection Diesel Engine,' SAE1999-01-3669, 1999 

이 논문을 인용한 문헌 (3)

  1. Sung, Yong-Ha ; Jung, Kil-Sung ; Choi, Byung-Chul ; Lim, Myung-Taeck 2007. "HCCI Combustion of DME in a Rapid Compression and Expansion Machine" 한국자동차공학회논문집 = Transactions of the Korean Society of Automotive Engineers, 15(2): 8~14 
  2. Baek, Cheul-Woo ; Yoon, Hyeon-Sook ; Yeom, Ki-Tae ; Jang, Jin-Young ; Bae, Choong-Sik 2007. "The Effects of Hydrogen on DME HCCI Combustion" 한국자동차공학회논문집 = Transactions of the Korean Society of Automotive Engineers, 15(2): 15~21 
  3. Chung, Jae-Woo ; Kim, Nam-Ho ; Kang, Jung-Ho ; Park, Sang-Wook ; Lee, Ho-Kil ; Choi, Seung-Kyu 2009. "A Study on the DME Application Performance of a High Pressure Fuel Pump for an Electric Controlled Common-rail Compression Ignition Engine" 한국자동차공학회논문집 = Transactions of the Korean Society of Automotive Engineers, 17(2): 132~140 

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