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연료 물성 변화가 자동차 주요부품 및 배출가스에 미치는 영향 연구

Study on effect of fuel property change on vehicle important parts and exhaust gas

  • 이정천 (한국석유관리원 석유기술연구소) ;
  • 김성우 (한국석유관리원 석유기술연구소) ;
  • 이민호 (한국석유관리원 석유기술연구소) ;
  • 김기호 (한국석유관리원 석유기술연구소) ;
  • 박언영 (한국석유관리원 석유기술연구소)
  • Lee, Jung-Cheon (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Kim, Sung-Woo (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Lee, Min-Ho (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Kim, Ki-Ho (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Park, An-Young (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority)
  • 투고 : 2017.10.25
  • 심사 : 2017.11.29
  • 발행 : 2017.12.30

초록

산업이 발전함에 따라 전 세계적으로 환경오염에 대한 문제가 대두되고 있으며, 자동차 배출가스 규제도 점점 강화되고 있다. 하지만, 배출가스는 단순한 자동차만의 문제가 아닌 연료물성성분에 따른 영향도 받는 것으로 알려져 있으며, 특히, 디젤엔진의 경우 CRDI 엔진이 개발 및 상용화되면서 고성능 엔진은 고성능 연료를 필요로 하고, 그 중 대표적인 것이 연료의 윤활성으로 밝혀진바, 이에 본 연구에서는 연료물성변화가 자동차 주요부품 및 배출가스에 미치는 영향을 확인하고자 하였다. 윤활성이 취약한 연료($651{\mu}m$/품질기준 $400{\mu}m$이하)를 차량에 사용하여 고압펌프 및 인젝터, 매연저감장치 등의 파손이 발생하며, 매연 및 배출가스, 연비가 악화되는 것을 확인하였다. 또한, 파손된 매연저감장치(DPF)를 확인한 결과 철분성분이 다량 검출되었으며 이는 연료에 철분성분이 많이 함유되어 있어, 배출가스에 영향을 미쳐 매연저감장치(DPF)의 처리능력을 초과한 입자상물질의 배출로 인한 파손으로 추정 및 확인하였다.

Exhaust regulations of automobile are being reinforced increasingly as environmental problems issues came to the fore by industrial development. However, it is known that the exhaust emission is not only influenced by the system of automobile but also the fuel properties. In particular, high-performance engines have required high-performance fuels with high lubricity as CRDI engines(diesel engine) have been developed and commercialized. This paper have examined that the fuel property variations affect a major parts and an exhaust gas of automobile. It was confirmed that the high pressure pump, the injector and the DPF(diesel particulate filter) were damaged and fuel efficiency was get worse due to use the fuel of lacking lubricity property($651{\mu}m$/quality standard: less in $400{\mu}m$). In addition, through an iron component was detected in the broken DPF, it was estimated that the breakage of the DPF was caused by the excessive exhaust of the particulate matter due to the iron component of the fuel.

키워드

참고문헌

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