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OSukheon AN(안숙헌),Jeonggil Nam(남정길),Jaesung Choi(최재성) 한국마린엔지니어링학회 2007 한국마린엔지니어링학회 학술대회 논문집 Vol.2007 No.-
Regarding marine environmental aspects, the regulation of marine emission was started in Jan. 1st, 2000. The maximum allowable NOx emission limits is expressed clearly in terms of the original module for Main Engine, Aux. Diesel Engine, Boiler and the others. But the proposal of SOx its own is now in the situation being delayed for a major uncertain problem. And the sulfur components contained much in low grade heavy fuel oils in general do not only have a big effect upon the cost, the low temperature corrosion and the engine tribology, but also related to a formation and emission when produced the nitrous oxides (N₂O) and the sulfuric mist in particulate matters (PM). In this work the internal flame during combustion of the low grade heavy fuel oil was investigated, at conditions for the actual spot boiler. With an industrial-scale flame, the work indicates on the whole that NOx is 270ppm, SO₂ is 1000~1400ppm, N₂O is about 8ppm at downstream flame. Besides, DS and SOF formation is relatively remarkable at upstream flame, but SOF decomposition becomes as goes downstream - DS plus SOF equals PM is about 2.0~2.5g/m<SUB>N</SUB>³, and sulfuric acid conversion amount is about 60~80㎎/m<SUB>N</SUB>³.
IMO 잠정 가이드라인에 의한 국내 선박의 CO₂ 인덱싱 값 조사 및 분석
이돈출(Donchool Lee),남정길(Jeonggil Nam) 한국마린엔지니어링학회 2006 한국마린엔지니어링학회 학술대회 논문집 Vol.2006 No.-
Ship's exhaust emissions are greenhouse gases(GHG) which contribute to global warming effect. These emissions are composed of CO₂, CH₄, N₂O, HFC, PFCs and SF? and, among these, CO₂ emission is the most critical component. CO₂ represents more than 95% of the total emission and it should be controlled and reduced. Likewise, ship numbers and total tonnage in the shipping business has been increasing steadily brought by higher volume of transport between countries. Hence, the interim guidelines were adopted for voluntary Ship CO₂ emission indexing for use in trials suggested by the committee at IMO MEPC 53<SUP>rd</SUP> session. In this paper, the CO₂ discharge and emission level of ocean-going vessels were investigated by interim guideline and analysed by the weighting factors proportionate to the vessel's voyage distance and the number of vessels as an exact statistical method.