• Title/Summary/Keyword: Crude and product tanker market

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Structural Safety Evaluation for 75,000 TDW Chemical Tanker Applied Common Structural Rules (CSR을 적용한 75,000 TDW 화학제품 운반선의 구조 안전성 평가)

  • Sim, Ye-Eun;Haa, Chung-In;Nam Gung, Mun;Kim, Gi-Jae;Lee, Kyung-Seok;Kim, Man-Soo
    • Special Issue of the Society of Naval Architects of Korea
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    • 2013.12a
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    • pp.1-7
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    • 2013
  • In past decades, a maximum standard vessel size for chemical tankers is not normally larger than 55,000 TDW due to the characteristic of chemical product shipment which is so variable but small quantity unlike single product carries such as crude oil tankers. These days, as demand of very large chemical tanker is rising due to the change of market trend of chemical product shipment, 75,000 TDW class chemical tanker has been developed. The newly developed vessel's structure has been designed based on CSR (Common Structural Rule) for double hull oil tankers (hereafter CSR) published by IACS (International Association of Classification Societies). However, due to the large difference from typical oil tankers, many items should be specially considered such as on deck transverse and corrugated bulkheads. In addition, two longitudinal bulkheads without upper stool have been constructed in order to maximise the number of cargo tanks and the volume of each cargo tanks. In this study, key word of the vessel has been briefly reviewed and the structural reliability of the proposed vessel has been investigated.

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An Empirical Study on the Decision Making Factors for the fleet composition of oil Tankers with Reference to the Korean Refineries (원유수송 선대구성을 위한 의사결정요인 도출에 관한 실증적 연구 - 한국 정유사를 중심으로 -)

  • Bek, Gi-hon;Lee, Tae-Woo;Chang, Young-Tae
    • Journal of Navigation and Port Research
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    • v.26 no.4
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    • pp.373-381
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    • 2002
  • There has been an interesting trend showing that the number of tankers owned by major oil company has been decreasing since the 1980s, while the number of tankers chartered by them is increasing. So do Korea oil refineries in the period 1990s. Therefore, the following question is raised: Why have oil refinery companies, national and international, been much more dependent upon chartered ships than their owned ships since 1980s\ulcorner This paper tried to answer the above question. In so, doing ten decision-making factors for fleet composition of oil tankers are drawn through literature survey on the research topic with questionnaires and interviews to the four big Korean oil refineries.