• Proceedings of KOSOMES biannual meeting
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• 2017.11a
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• pp.185-185
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• 2017

• Proceedings of the Korean Society of Marine Engineers Conference
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• 2006.06a
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• pp.99-100
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• 2006

최근 LNG 연료 시장의 호황에 힘입어 LNG선들이 점차 대형화 추세에 있고, LNG선의 추진 기판 또한 경제성, 환경 영향 등의 주어진 요구 환경에 따라 다양화 되고 있다. 기존의 Steam Turbine Propulsion 외에 Conventional 2-stroke Diesel Engine 및 Dual-fuel 4-stroke Diesel Engine 이 LNG선의 주 기관으로 각광받고 있다. 이에 따라 Dual fuel electric propulsion LNGC의 기본 개념, 작동 원리 주요 보조 기기, 타 추진 시스템과의 비교 능에 대해 고찰하였다.

• Proceedings of KOSOMES biannual meeting
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• 2018.06a
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• pp.133-133
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• 2018

• Journal of Advanced Marine Engineering and Technology
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• v.31 no.6
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• pp.652-664
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• 2007

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2020.11a
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• pp.33-35
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• 2020

해양 및 대기 오염 방지를 위한 친환경선박에 대한 관심이 고조되고 있고 특히 LNG를 연료로 하는 LNG 연료추진선이 확대되고 있다. 그리고 국내에서도 LNG Bunkering 선박 건조에 지속적으로 추진되고 있다. LNG Bunkering의 안전한 운용을 위해서는 여러 위험요소를 분석해야한다. 그 중에도 LNG Bunkering 작업 중 주변 선박 통항에 따른 안전한 이격거리의 확보 또한 중요한 사항이지만 이에 대한 연구는 미진한 형태이다. 이에 안전한 이격거리에 대해서 외국 및 국내규정을 검토하였으나 명확한 규정이 없어 이에 대한 분석을 통한 안전하고, 경제적인 이격거리에 대한 연구가 필요하다. 안전한 이격거리에 대해 분석하기 위한 우선적으로 안전한 이격거리에 영향을 미칠 요소에 대해 검토한다.

• Korea Petroleum Association Journal
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• no.11 s.141
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• pp.13-16
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• 1992

• Korea Petroleum Association Journal
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• no.12 s.142
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• pp.13-16
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• 1992

• Journal of the Korean Society of Marine Environment & Safety
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• v.25 no.5
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• pp.617-626
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• 2019

This study analyzes the optimal location of gas detectors through the gas dispersion in a cargo compressor room of a 174K LNG carrier equipped with high-pressure cargo handling equipment; in addition, we propose a reasonable method for determining the safety regulations specified in the new International Code of the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk (IGC). To conduct an LNG gas dispersion simulation in the cargo compressor room-equipped with an ME-GI engine-of a 174 K LNG carrier, the geometry of the room as well as the equipment and piping, are designed using the same 3D size at a 1-to-1 scale. Scenarios for a gas leak were examined under high pressure of 305 bar and low pressure of 1 bar. The pinhole sizes for high pressure are 4.5, 5.0, and 5.6mm, and for low pressure are 100 and 140 mm. The results demonstrate that the cargo compressor room will not pose a serious risk with respect to the flammable gas concentration as verified by a ventilation assessment for a 5.6 mm pinhole for a high-pressure leak under gas rupture conditions, and a low-pressure leak of 100 and 140 mm with different pinhole sizes. However, it was confirmed that the actual location of the gas detection sensors in a cargo compressor room, according to the new IGC code, should be moved to other points, and an analysis of the virtual monitor points through a computational fluid dynamics (CFD) simulation.

• Journal of Korea Port Economic Association
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• v.32 no.1
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• pp.123-133
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• 2016

LNG(Liquefied Natural Gas) bunkering has become an important issue with the enforcement of environment regulations in shipping industry required by the International Maritime Organization (IMO). With increased attention on LNG bunkering, many studies that focus on safety, regulation, demand forecasting, and the feasibility of LNG fueled ships have been carried out. However, most of the existing research has not included considerations of the price of LNG bunkering and its competitiveness. This paper, therefore, suggests ways to increase price competitiveness in the LNG bunkering market in the Busan Port. This paper analyzes the LNG bunkering supply mechanism by investigating various LNG bunkering terminal business in the LNG supply market. Factors that determine LNG bunkering price and its elasticity are also identified. Market players who want to operate LNG bunkering terminals in the Busan Port should introduce a merchandising trade method that is able to exclude the "Korea premium" in order to increase price competitiveness. This paper also suggests adoptable strategies such as the use of TPS (Terminal to Ship via Pipeline) type of bunkering service and the importance of location for minimizing initial investment cost.

• Journal of the Society of Naval Architects of Korea
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• v.49 no.6
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• pp.504-511
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• 2012

The objective of this study is to investigate tank container to be used as fuel tank for LNG fueled ship. Feasibility of tank container to the fuel tank of LNG fueled ship is addressed and the advantage of tank container as fuel tank of ship is investigated. Conceptual configuration of the tank container is designed as well as structural analyses based on finite element method are carried out to meet the design regulation suggested by shipping register. Static loading is considered by structural analysis and impact test is performed. It is necessary to require SRS(shock response spectrum) in order to investigate structural safety which can meet.