한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제22권2호
  • /
  • Pages.83-90
  • /
  • 2014
  • /
  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
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저온산화반응 제어가 DME-가솔린 혼합연료의 HCCI 연소에 미치는 영향

The Effect of Control of Low Temperature Oxidation using DME-gasoline Fuel Mixture on the HCCI Combustion

  • 박영진 (울산대학교 대학원 기계공학과) ;
  • 임옥택 (울산대학교 기계공학부)
  • Park, Youngjin (Graduate of Mechanical Engineering, Ulsan University) ;
  • Lim, Ocktaeck (School of Mechanical Engineering, Ulsan University)
  • 투고 : 2013.07.15
  • 심사 : 2013.08.27
  • 발행 : 2014.03.01
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초록

The main purpose of the study is to investigate the ideal manner and ratio to inject gasoline and DME simultaneously into intake port, and moreover to confirm the characteristics of combustion and emission of engine. Experimental conditions are 1200 rpm, compression ratio 8.5, intake air temperature (383 K). Internal cylinder pressure was collected to confirm the characteristics of combustion in order to calculate the heat release rate in the cylinder. In addition, HORIBA (MEXA 7100) which was possible analyzing emissions (NOx, CO, HC) was used. Vanguard gasoline engine (23HP386447) was used in this experiment. The result show that fuel design (DME-Gasoline) leads to the decrease of low temperature heat release, which is a benefit for higher-load on the HCCI engine. Also, IMEP and the indicated thermal efficiency increase with combustion-phasing retard, and these observations can be explained by considering the control of low temperature oxidation of DME.

키워드

참고문헌

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