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Effects of SO2 Mixture in Inlet Air on Combustion and Exhaust Emission Characteristic in diesel engine

디젤엔진에 있어서 흡기 중에 SO2혼입이 연소 및 배기배출물 특성에 미치는 영향

  • Yoo, Dong-Hoon (Environment / Power and Energy Department, National Maritime Research Institute)
  • 유동훈 (독립해상법인 해상기술안전연구소)
  • Received : 2015.01.20
  • Accepted : 2015.03.02
  • Published : 2015.04.30

Abstract

Marine diesel engines with high thermal efficiency and fuel diversity used for propulsive power have been taking charge of important position on marine transport. However, marine environment has recently focused on emissions such as nitrogen oxide and sulfur oxide which is generated from combustion of low grade fuels. EGR(Exhaust gas recirculation) system is one of effective methods to reduce the nitrogen oxide emission from marine diesel engines. In general, it is considered that recirculating gas influences fuel combustion and emissions in diesel engines. However, along with positive effects of EGR, the EGR system using fuels of including high sulfur concentration should be considered about re-combustion and activation of sulfur dioxide in recirculating gas. Therefore, in experimental study, an author investigates effects of sulfur dioxide mixture concentration in intake air on combustion and exhaust emission characteristics in a direct injection diesel engine. In results, change of sulfur dioxide concentrations in intake air had negligible impact on combustion chamber pressure, rate of heat release and emissions compared with effects of oxygen decreasing and carbon dioxide increasing of EGR.

Keywords

References

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