A Study on Types and Reasons of Engine Troubles Related to Fuel Oil

연료유에 의한 선박 디젤엔진 손상에 관한 연구

  • Na, Eun-Young (Marine Pollution Response Division, W. Regional HQ. Korea Coast Guard) ;
  • Baik, Shin-Young (Marine System Engineering Division, Mokpo National Maritime University)
  • 나은영 (서해지방해양경찰청, 해양오염방제과) ;
  • 백신영 (목포해양대학교, 기관시스템공학부)
  • Received : 2009.02.16
  • Accepted : 2009.08.03
  • Published : 2009.08.25

Abstract

Fuel oil mostly used for a ship is made from crude oil by refining process. In order to produce plenty of high-quality fuel oil, the Fluid catalytic cracking(FCC) method is widely adopted to many refinery factories during the decomposition process from high molecule into lower molecule. The major constituents in spent FCC catalysts are Si, Al, Fe, Ti, alkali metals and some others. The spent catalyst is also composed small amounts of rare metals such as Ce, Nd, Ni and V. The big problem in FCC oil is mixing the catalyst in the oil. This reason is unstable separation of FCC catalyst in separator. Such a FCC catalyst will become a reason of heavy wear down in moving parts of engine. The impurity in oil is ash and deposit compound, such as Al, Si, Ni, Fe and V, which will accelerate the wear down on fuel pump, fuel injection valve cylinder liner and piston ring. It is important to find a basic reason of an engine trouble for preventing similar troubles anymore. Insurance compensation will be different according to the reason of an engine trouble which might be natural abrasion or other external causes. In this study, types and reasons of engine troubles related to fuel oil will be covered.

Acknowledgement

Supported by : 목포해양대학교 부설 동력기계연구소

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