17 research outputs found

    Research on failure mechanism of Si powder anode in lithium secondary batteries

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    학위논문(박사)--서울대학교 대학원 :공업화학과,2004.Docto

    Analysis on Merchandising of Stand-Alone Men’s Department Stores - Focused on Tokyo, Japan -

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    Device and method to reject boil-off gas

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    본 발명은 액화 천연가스 저장부에서 선박의 액화 천연가스 탱크로 액화 천연가스를 주유 시 발생되는 증발가스를 처리하기 위한 처리 장치 및 처리 방법에 관한 것으로, 특히 분사부, 흡탈착 장치, 탈착부 및 냉각부가 구비되어 있어 액화 천연가스 주유 시 발생된 증발가스를 효율적으로 처리할 수 있는 증발가스 처리장치와 방법에 관한 것이다

    중간온도형 고체산화물 연료전지의 양극재료로서 Gd0.8Ca0.₂Co₁-xFexO₃의 전기화학적 특성과 계면특성 연구

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    학위논문(석사)--서울대학교 대학원 :공업화학과,1998.Maste

    A Study on the Eroticism of the Exposed Body and Clothing Style of Chinese Foreign Students in Korea

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    Apparatus for supplying liquefied natural gas to vessel

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    본 발명은 액화 천연가스 저장부에서 선박의 액화 천연가스 탱크로 액화 천연가스를 주유하는 선박의 액화 천연가스 주유장치에 관한 것으로, 특히, 제1주유관, 제2주유관 및 플래쉬 드럼이 구비되어 있어 선박이 요구하는 조건의 액화 천연가스를 주유할 수 있는 선박의 액화 천연가스 주유장치에 관한 것이다

    액화천연가스의 선박 대 선박 주유를 위한 증발가스 처리 시스템 설계

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    학위논문(석사) - 한국과학기술원 : 해양시스템공학전공, 2012.8, [ vi, 42 p. ]This study investigated the overpressure occurring during the ship-to-ship bunkering of LNG (Liquefied natural gas) to LNG-fuelled large ships and suggested a proper measure to handle LNG and boil-off gas (BOG) against overpressure. Two primary causes of BOG were identified: one from the contact of LNG with relatively hot equipment and piping segments, and the other from the onboard fuel tanks filled with high-pressure BOG and LNG. The latter was found to dominate the former, implying that the protection measure should address the BOG from the fuel tank before the bunkering operation. Comparing the BOG-handling alternatives of venting into the atmosphere, reliquefaction, and absorption into LNG in a pressure vessel, the last was considered the most appropriate in view of cargo loss, risk, operation time, and equipment cost. Process dynamic simulations performed for several operational cases demonstrated that the BOG-generation rate and the consequent pressure buildup in the absorbing vessel were primarily determined by the size, pressure, and heat capacity of the fuel tank as well as the amount of the remaining LNG. Because the filling limit allowed for the thermal expansion of the cryogenic fuel, the feasible bunkering operation range was primarily governed by the pressure and the liquid level of the absorbing vessel. The peak pressure of the operational cases indicated that the maximum operating pressure for the BOG absorbing vessel should be approximately 4.5 bara in the considered operational cases.한국과학기술원 : 해양시스템공학전공
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