Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
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The Combustion Characteristics of Residual Fuel oil Blended with Fuel Additives

잔사유용 연료첨가제 함유 선박 연료유의 연소특성 연구

  • Jang, Se-Hyun (Graduate school of Korea Maritime and Ocean University) ;
  • Lee, Kyoung-Woo (Team Solution Co., Ltd.) ;
  • Kim, Jeong-Ryul (Division of Marine Engineering System of Korea Maritime and Ocean University) ;
  • Kim, Jong-Ho (Division of Marine Engineering System of Korea Maritime and Ocean University) ;
  • Yoon, Seok-Hun (Division of Marine Engineering System of Korea Maritime and Ocean University) ;
  • Cho, Ik-Soon (Department of Ship Operation of Korea Maritime and Ocean University) ;
  • Choi, Jae-Hyuk (Division of Marine Engineering System of Korea Maritime and Ocean University)
  • 장세현 (한국해양대학교 대학원) ;
  • 이경우 ((주)팀솔루션) ;
  • 김정렬 (한국해양대학교 기관시스템공학과) ;
  • 김종호 (한국해양대학교 기관시스템공학과) ;
  • 윤석훈 (한국해양대학교 기관시스템공학과) ;
  • 조익순 (한국해양대학교 선박운항과) ;
  • 최재혁 (한국해양대학교 기관시스템공학과)
  • Received : 2016.06.14
  • Accepted : 2016.08.29
  • Published : 2016.08.31
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Abstract

Ships are capable of operating on residual fuel oil. Recently, various attempts have been made to meet environmental regulations and with ships operating on residual fuel oil. One way of fulfilling these requirements is by using fuel additives. Dispersants and fuel combustion improvers will have a positive effect on improving the combustion characteristics of the residual fuel oil. As such, this study examines fuel oils blended with additives by using fuel combustion analysis (FIA/FCA) and thermogravimetric analysis (TGA). The results of FIA/FCA focuse only on the amount of work done by the fuel oil. Therefore, it is recommended in this study that a new method to evaluate the combustion efficiency via FIA/FCA processes be developed. The analysis with ROHR curve gained by FIA/FCA brought similar results with pressure trace curve therefore it can be said that new analysis method can be reliable. The TGA, analysis process is very sensitive to the evaporation of fuel, for example, which could be addressed. In the performance-related findings of this study, blended samples with additives containing iron compounds showed a greater improvement in early combustion characteristics than samples without additives.

선박엔진은 잔사유를 에너지원으로 활용하여 운항할 수 있으며, 이를 활용한 선박에서 환경 규제와 경제성을 모두 만족시키는 다양한 방안들이 모색되고 있다. 그 중에 한 방안으로 연료 첨가제를 활용하는 기술이 있을 수 있다. 분산제와 연소촉진제는 잔사유 활용 시 엔진의 연소특성 촉진에 기여할 것이라는 기대를 받고 있다. 따라서, 본 연구에서는 연소성 분석 장비(FIA/FCA)와 열 중량 분석 장비(TGA)를 활용하여 잔사유 연료첨가제가 혼합된 잔사유의 연소성을 분석하였다. 연소성 분석 장비(FIA/FCA)의 결과로는 연소에 의한 일의 총량을 분석하도록 분석법이 개발되었으며, 이 때문에 본 연구를 통하여 동일 장비를 활용하면서도 연소 효율을 간단하게 평가할 수 있는 방안을 제시하였다. 연소성 분석 결과인 ROHR 곡선으로부터, 단순한 삼각함수를 활용하여 연소특성을 예측할 수 있는 방안을 제시하였으며, 이 기법을 활용하여 기존의 압력 곡선과 유사한 결론을 도출할 수 있었다. 열 중량 분석(TGA)의 경우 연료유의 증발 특성에 민감하게 반응함을 확인하였고, 첨가제가 연료유 증발에 효과적으로 작용함을 확인하였다.

Keywords

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