• Title/Summary/Keyword: 부유식 해양 플랜트

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A Study on Time Charter Party For Offshore Service Vessels 2005 - Focusing the Dispute Resolution Clause - (2005년 해양플랜트 지원선박용 정기용선계약서에 관한 소고 - 분쟁해결약관을 중심으로 -)

  • Lee, Chang-Hee;Kim, Jin-Kwon
    • Journal of Navigation and Port Research
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    • v.38 no.1
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    • pp.81-87
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    • 2014
  • Today, it is a trend that the demand of offshore plants is constantly growing, along with the advances in technology which are thoroughly needed to the rise of international oil price as well as offshore energy development. In addition, The main sectors of ship building, sale & purchase and chartering market regarding various kind of offshore supporting vessels that supports the business of offshore energy development is now maintaining its steady growth. However, in domestic case, the contract of time charter occasions regarding the offshore support vessel are almost non-existing situation. Thus, the relevant practical study regarding to implementation of various kinds of legal disputes and applicable laws that can be properly applied in time charter and the field of sale & purchase needs to be conducted actively. Therefore, the concept of this study has included the wide comparisons of other special provisions with the existing time-charter by making its base on "Supply Time 2005" which is the worldwide standard form of time charter in offshore support vessel market and its investigation, aiming to provide practical guidance and procedure for implementation of arbitration and applicable law issues which can be applied in legal disputes between parties.

Development of Engineering Model for a Barge Moulted Seabed Sludge Treatment Plant (해저 오염 퇴적층 복원 처리를 위한 BMP 패키지 기술 개발)

  • 배준홍;하문근;어경해;김승혁;박찬후;김병우;구근회;윤철원
    • Journal of Ocean Engineering and Technology
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    • v.17 no.2
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    • pp.8-13
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    • 2003
  • Soil, ground water, and sea bed are exposed to a continuous accumulation of polluted materials, causing serious environmental damage. It has been reported that such pollution causes a massive mortality of fish stock in rivers due to the resuspension of toxic chemicals, occurring during strong wind conditions. Therefore, it becomes apparent that there is an immediate demand for the restoration treatment of polluted river bed (or sea bed) sediment layers. Pollution levels of major rivers and ports, such as Paldang, Kyungan rivers, and Masan port, are becoming of great public concern, and are posing a serious environmental threat. In particular, the pollution of the Shi-hwa river has become a nation wide issue for the last few years. In spite of such public concern, the pollution levels of such rivers or ports are worsening everyday. In this study, an environmentally sound engineering package is introduced that helps to restore the polluted river bed or sea bed sediments. This engineering package consists of a suction facility, followed by a series of mechanical, chemical, and biological treatment units. The suction facility is designed to minimize secondary pollution that occurs from the resuspension of toxic materials during suction. The sea bed cleaning engineering package is designed to be installed on the top of a floating barge. Such a combination of environmental plant and shipbuilding technology provides a cost-effective solution, minimizing the transportation between suction and treatment facilities.

A Study on the Simplified Model for the Weight Estimation of Floating Offshore Plant using the Statistical Method (통계적 방법을 이용한 부유식 해양 플랜트의 중량 추정용 간이 모델 연구)

  • Seo, Seong-Ho;Roh, Myung-Il;Ku, Nam-Kug;Shin, Hyun-Kyung
    • Journal of the Society of Naval Architects of Korea
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    • v.50 no.6
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    • pp.373-382
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    • 2013
  • The weight of floating offshore plant, such as an FPSO(Floating, Production, Storage, and Off-loading unit) and an offshore wind turbine, is important for estimating the amount of production material and for determining the production method. Furthermore, the weight is a factor which affects in the building cost and production time of the floating offshore plant. Although the importance of the weight has long been recognized, the weight has been roughly estimated by using the existing design and production data, and designer's experience. To solve this problem, a simplified model for the weight estimation of the floating offshore plant using the statistical method was proposed in this study. To do this, various data for estimating the weight of the floating offshore plant were collected through the literature survey, and then the correlation analysis and the multiple regression analysis were performed to generate the simplified model for the weight estimation. Finally, to examine the applicability of the developed model, it was applied to examples of the weight estimation of an FPSO topsides and an offshore wind turbine. As a result, it was shown that the developed model can be applied the weight estimation process of the floating offshore plant at the early design stage.

A Study on Out-of-Plane Bending Mechanism of Mooring Chains for Floating Offshore Plants (부유식 해양플랜트 계류 체인의 면외굽힘 거동에 대한 연구)

  • Lim, Yu-Chang;Kim, Kyung-Su;Choung, Joon-Mo;Kang, Chan-Hoe
    • Journal of the Society of Naval Architects of Korea
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    • v.47 no.4
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    • pp.580-588
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    • 2010
  • OPB(out-of-plane bending)-induced failure of mooring chain was firstly addressed by CALM (catenary anchor leg mooring)-type offloading buoy, located approximately one mile away from the bow of the Girassol FPSO which was installed offshore area of Angola in September 2001. This study deals with verifying the load transfer mechanism between the first free chain link and connected two chain links inside the chain hawse. OPB moment to angle variation relationships are proposed by extensive parametric study where the used design variables are static friction coefficients, proof test loads, nominal tension forces, chain link diameters, chain link grades and chain link types. The stress ranges due to OPB moments are obtained using nonlinear FEAs (finite element analyses). Final stress ranges are derived considering ones from IPT (in-plane tension) forces. Also a formula for OPB fatigue assessment is briefly introduced.

Heat Transfer Characteristics of Plate-fin Heat Exchanger Using LNG FPSO Liquefaction Process (LNG FPSO 액화공정에 적용되는 플레이트 핀 열교환기의 열전달 특성)

  • Yoo, Sun-Il;Kim, Hyun-Woo;Jung, Young-Kwon;Yoon, Jung-In;Park, Seung-Ha;Kim, Chang-Su
    • Journal of Advanced Marine Engineering and Technology
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    • v.34 no.6
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    • pp.798-805
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    • 2010
  • There are no domestic researches of plate fin heat exchanger in the field of cryogenic such as LNG FPSO liquefaction plant. In this study, condensing heat transfer characteristics of nitrogen according to three kinds of fin type in the plate fin heat exchanger were analyzed through simulation and experiment to secure independent technologies. In the simulation, nitrogen was condensed at 69bar and $-140^{\circ}C$ in serrated and wavy fin of plate-fin heat exchanger. The serrated fin shows the highest value of local heat transfer coefficient, followed by wavy and plain fin. The experimental results were shown errors less than 12% comparing with the simulation results.

Development of the Pre-treatment Technology for LNG-FPSO (LNG-FPSO용 천연가스 전처리 기술 개발)

  • Jee, Hyun-Woo;Lee, Sun-Keun;Jung, Je-Ho;Min, Kwang-Joon;Kim, Mi-Jin
    • Plant Journal
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    • v.9 no.3
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    • pp.38-42
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    • 2013
  • Submarine gas fields have focused because of the increasing fuel cost, the environmental regulations, and the safety & NIMBY problems. LNG-FPSO which is available for acid gas removal, recovery of the condensate & LPG and Liquefaction in topside process is one of high technology offshore structures. On the other hands, it is necessary to verify the pre-treatment efficiency by the ship motion and to apply to the design for LNG-FPSO. This study is to develop the pre-treatment technology for LNG-FPSO as taking account to the process efficiency by ship motion effects and the area optimization. Based on the simulation results, it founds that hybrid process shows the low circulate rate, the low heat duty and the small size of column dimensions compared to typical amine process. It will be verified the process efficiency in the various conditions by sea states as performing the 6-DOF motion test and CFD simulation.

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