• 제목/요약/키워드: Coastal tanker

검색결과 20건 처리시간 0.023초

유조선 사고의 원인분석과 유효수준 결정에 관한 연구 (A Study on the Analysis ansd tne Quantification of Effect Level of Causal Factors in Tanker Casualties)

  • 정재용;박진수
    • 한국항해학회지
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    • 제22권1호
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    • pp.23-30
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    • 1998
  • Traffic density has increased recently in Korean waters due to an expansion of the sea trade and the development of coastal fisheries. The enlargement of the coastal industrial belts and the development of coastal inslands further increases marine traffic. The rapid increase of marine traffic has often resulted in marine casualties with the attendant loss of life, damage to property, and marine pollution. Especially, tanker casualties may destroyed the food web and an untold amount of ocean resources. Un regard to the potential of tanker spills in Korean waters, systematic research in this field is lacking. In this paper, the data relating to a total of 261 tanker casualties in Korean waters has been compiled and statistically anlaysed. The result of this study describes the general trend of marine casualties in Korean waters, and describes the casualtiy database, from which their causes and consequences are derived and this results in the determination of the causal relationships connected to tanker casualties, and quantifies the effective level of causal factorsin Korean waters.

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연안항로용 중소형 섭박의 선형 개발 (Development of hull form of small and medium size coastal ships)

  • 조용진;고창두;김성환
    • 한국해양공학회지
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    • 제11권2호
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    • pp.131-137
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    • 1997
  • The technology of small and medium sized shipbuilding companies is lower relatively to major shipbuilding companies, and should be up-graded from the viewpoint of national economic development. In spite that hul form design is one of the most important elements with respect to shipbuilding technology, small and medium sized shipbuilding companies are incapable of developing hull form. Inorder to support technically such companies hull form development was carried out for G/T 999ton class tanker and D/W 4990ton class tanker which are the typical vessels operating in coastal area. The operating efficiency for the developed hull forms are impeoved by 30% for G/T 999ton class tanker and 24% for D/W 4990 tonclass tanker respectively. The results of hull form development including ship model test and performance analysis are presented in this paper.

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내항탱커 안전관리 강화를 위한 Oil Major Vetting 시스템의 도입에 관한 연구 (A Study on Introduction of Oil Major Vetting System for Enhancement of Safety Management of Coastal Tanker in Korea)

  • 김종관;정우리;김세원
    • 수산해양교육연구
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    • 제27권3호
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    • pp.706-717
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    • 2015
  • Marine casualties and environmental pollution have increased recently. Especially, the rate of incident of Coastal tankers is higher, but the assessment tool for safety management system is lack in this fields. However Oil Major Vetting System being professional assessment tool for tanker is widely applied in ocean going tanker by the worldwide Oil Majors. According to the analysis of the marine tankers' incidents which applied Oil Major Vetting System, the incidents were reduced rapidly for recent about 5 years. Using Oil Major Vetting System is helped to improve safety management and to prevent marine incidents. Therefore if applying a parts of the Oil Major Vetting Systems to the coastal tankers' Safety Management System, the Coastal tankers incidents would be reduced and improved gradually.

Oil Fence 에 발생하는 전장력에 관한 실험적 연구

  • 안성모;청목신일
    • 한국해안해양공학회:학술대회논문집
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    • 한국해안해양공학회 1997년도 정기학술강연회 발표논문 초록집 Annual Meeting of Korean Society of Coastal and Ocean Engineers
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    • pp.139-142
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    • 1997
  • 최근 우리나라를 비롯해 세계 여러 나라에서 Oil Tanker에 의한 사고가 빈번히 일어나고 있다. 이와 같은 사고의 대책으로 Oil Tanker의 2중화 등 여러 가지 면에서 대책에 총력을 기울이고 있지만, 일단 사고가 발생하게 되면 이러한 모든 대책은 무용지물이 되고 만다. 사고 발생 후 확산되는 Oil의 집적에 현재 일반적으로 사용되어지는 도구인 Oil Fence는 다양한 형태의 많은 개발품이 사용되어 지고 있지만, 이러한 Oil Fence 및 Oil 회수 장치에 의해 회수되어지는 양은 전체 확산되어지는 양의 고작 15%정도에 그친다. (중략)

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갑판침수를 고려한 화학제품운반선 건현 검토에 관한 연구 (A Study of the Examination of the Freeboard of a Chemical Tanker Considering Deck Wetness)

  • 박종헌
    • 한국해양공학회지
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    • 제24권2호
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    • pp.41-46
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    • 2010
  • This paper deals with the problem of developing a new decision procedure for the freeboard of a coastal chemical tanker going on the coast. The decision procedure is mainly constructed with the algorithm of estimating statistically the time period that deck wetness will last on the deck of the ship. Deck wetness is one of the most important safety factors for sailing of a coaster. It generally means the situation in which the amplitude of the relative motion between the deck and the surface of the wave exceeds the freeboard. Therefore, in this paper, we proposed that the time during which the amplitude remains above the level of the freeboard should be appraised on the basis of statistical theory. A series of numerical calculations were executed for four different coastal chemical tankers (199G/T Type II, III & 499G/T Type II, III). It was demonstrated that the present decision procedure of freeboard is practical for planning the type of coaster sailing in the sea.

우리나라 유류오염보상제도에 관한 고찰 (A Study on the Oil Pollution Compensation System in Korea)

  • 서동오
    • 한국항해학회지
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    • 제17권4호
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    • pp.73-87
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    • 1993
  • As a result of accepting the '71 FUND Convention and enforcing the Oil Pollution Compensation Act 1992, we observed some benefits and costa. This paper analyses those benefits and costs and suggests se-veral key policy recommendations for the estasblishment of an effective oil pollution compensation regime in Korea. This paper identifies the said benefits and costs as follows : First, by establishing the oil pollu-tion compensation system as same as the international level, most of small and medium size of oil pollution damage which are caused by coastal tankers will be compensated by FUND. Second, most of oil pollution damage which are not covered by '69 CLC will be compensated by FUND. Third, some parts of FUND Contribution Fee and CRISTAL Contribution Fee to be charged by major oil companies will be doubled. However the limit of international oil pollution compensation system and the loophole outside the Oil Pol-lution Compensation Act 1992 suggest followings : 1) Radical risk management and insurance manage-ment of ocean going tanker owners, 2) Establishment of oil pollution claim settlement system, 3) Enforce-ment of crew and ship management for coastal tanker and 4) Establishment of Korean P & I Club.

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운하-연안 연계용 바아지의 구조 설계 및 해석 (Structural Design and Analysis of Barge for Canal-Coastal Shipping)

  • 김경수;손충렬;김성준
    • 한국해양공학회지
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    • 제13권2호통권32호
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    • pp.26-34
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    • 1999
  • Two types of barge, container and tanker vessels, are designed with specific dimensions for canal-coastal shipping in Kyung-In canal and Yellow Sea region. The principal dimensions of barges are determined by considering the environment of Kyung-In canal and Yellow Sea. The selection of structure type and structure type and strength confirmation is conducted by the technical rules of Korean Register of Shipping. For the structural analysis of designed barges, the semi-direct stuctural analysis is carried out with using MSC NASTRAN software. Applying identical dimensions to both vessels, the standardization of structural design and analysis procedure are introduced.

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Motion Analysis of Two Floating Platforms with Mooring and Hawser Lines in Tandem Moored Operation by Combined Matrix Method and Separated Matrix Method

  • KOO BON-JUN;KIM MOO-HYUN
    • 한국해양공학회지
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    • 제19권5호
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    • pp.1-15
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    • 2005
  • The motion behaviors including hydrodynamic interaction and mechanical coupling effects on multiple-body floating platforms are simulated by using a time domain hull/mooring/riser coupled dynamics analysis program. The objective of this study is to evaluate off-diagonal hydrodynamic interaction effects and mechanical coupling effects on tandem moored FPSO and shuttle taker motions. In the multiple-body floating platforms interaction, hydrodynamic coupling effects with waves and mechanical coupling effects through the connectors should be considered. Thus, in this study, the multiple-body platform motions are calculated by Combined Matrix Method (CMM) as well as Separated Matrix Method (SMM). The advantage of the combined matrix method is that it can include all the 6Nx6N full hydrodynamic and mechanical interaction effects among N bodies. Whereas, due to the larger matrix size, the calculation time of Combined Matrix Method (CMM) is longer than the Separated Matrix Method (SMM). On the other hand, Separated Matrix Method (SMM) cannot include the off-diagonal 6x6 hydrodynamic interaction coefficients although it can fully include mechanical interactions among N bodies. To evaluate hydrodynamic interaction and mechanical coupling effects, tandem moored FPSO and shuttle tanker is simulated by Combined Matrix Method (CMM) and Separated Matrix Method (SMM). The calculation results give a good agreement between Combined Matrix Method (CMM) and Separated Matrix Method (SMM). The results show that the Separated Matrix Method (SMM) is more efficient for tandem moored FPSO and shuttle tanker. In the numerical calculation, the hydrodynamic coefficients are calculated from a 3D diffraction/radiation panel program WAMIT, and wind and current forces are generated by using the respective coefficients given in the OCIMF data sheet.

A System Dynamics Approach to Analyze the Effect of a Fostering Policy on the Coastal Shipping Industry

  • Park, Sung-Jin;Pa, Hoo-Seok;Shin, Yong-John
    • 한국항해항만학회지
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    • 제40권5호
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    • pp.345-351
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    • 2016
  • This study presents a system dynamics methodology to evaluate quantitatively the effect of the Korean government's development policy, such as tax reductions, on the industrial economy. System dynamics is often perceived as an optimized means to identify the dynamic inter-relationships among various factors of development policies, and in particular the industrial characteristics and uncertainties of the coastal shipping industry. The results of simulations used in this study shows that the impact of development policies such as tax reductions would increase shipping demand for about 4 years, and that tax incentives could raise the demand volume for cabotage cargo from 5.26 to 11.11%, through the available freight-down by 90~95% points. The system dynamics approach used in this paper represents an initial attempt to use this methodology in studies of the coastal shipping industry. On the basis of our simulations, the industrial effects of other development policies, such as ship financing support, investment of social overhead, or crew supply, could also be analyzed effectively. Additionally, it should be possible to extend these results by developing a comprehensive model encompassing these various analyses.