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Combustion characteristics of diesel engine with bio-ethanol blend fuel

바이오 에탄올 혼합유에 대한 디젤기관의 연소특성

  • Jung, Suk-Ho (Department of research and development, DAIHATSU DIESEL MFG. CO. LTD)
  • 정석호 (다이하츠 디젤 주식회사 연구부)
  • Published : 2009.05.31

Abstract

There are increased in using the bio-ethanol, as the carbon neutral attracts many researchers due to a reduction in carbon dioxide spotted as the global warming gas. A gasoline engine with 100% of the bioethanol was developed and used in Brazil already, but researches of using the bio-ethanol in diesel engines are lack. In this study, combustion tests with blend fuel of the gas oil and bio ethanol by 50% maximally due to a low cetane number of bio-ethanol were accomplished as a basic study of introduction of using the bioethanol in diesel engines. The result was that smoke emission was decreased with increase in proportion of the bio-ethanol, due to the increase of a amount of pre-mixed combustion with ignition delay. Although the amount of $CO_2$ is reduced according as the bio-ethanol is used(carbon neutral), the emission of $CO_2$ with increase in the proportion of the bio-ethanol was more increased due to lower a heat value of bio-ethanol than gas oil.

Keywords

Bio-Ethanol;Ignition delay;Smoke reduction;Amount of premixed combustion

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