Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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An Experimental Study on the Combustion and Nanoparticle Emission Characteristics of Gasoline-diesel Fuel in a Premixed Charge Compression Ignition Engine

예혼합 압축착화 엔진에서 가솔린-디젤 연료의 연소 및 극미세입자 배출 특성에 관한 실험적 연구

  • Received : 2012.03.24
  • Accepted : 2012.06.22
  • Published : 2012.06.30
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Abstract

The aim of this work was to investigate the combustion and nanoparticle emission characteristics of premixed charge compression ignition (PCCI) combustion at various test conditions using a single cylinder common-rail diesel engine. In order to create the homogeneity of fuel-air mixture, the premixed fuel (gasoline) was injected into premixing chamber during the intake process and then the diesel fuel was directly injected into the combustion chamber as an ignition source for the gasoline premixture. From these results, it revealed that the ignition delays and combustion durations were gradually prolonged and the peak combustion pressure were increased because diesel fuel was injected early injection timing with the increase of premixed ratio. In addition, as the increase of premixed ratio, total particle number is generally decreased and particle volume also indicated low levels at the direct injection timing from BTDC $20^{\circ}$ to TDC. At further advanced injection timing, total particle number and volume were generally increased

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References

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