A Study on the Variation of Physical Properties of Line-heated for Type-B LNG Fuel Tank with 9% Nickel Steel Plate

서지정보

· 발행기관 : 한국기계가공학회
· 수록지 정보 : 한국기계가공학회지 / 19권 / 7호 / 89 ~ 97페이지
· 저자명 : 최경신, 이지한, 홍지웅, 정원지

초록

Container vessels continue to grow in size, led by global shipowner. Large ships can be loaded more cargo ata time, reducing the cost of transportation per teu. this eventually leads to economies of sale, in which theproduction cost per unit decreases with increasing output. in accordance with the 70th Convention of the MarineEnvironment Protection Committee of the International Maritime Organization, as of January 1, 2020, MARPOLAnnex Ⅵ Regulation 14.1.3 will be effective. All vessels must be meet these criteria to reduce Sox emissionsand reduce NOx emissions by reducing the content of manned sulfur oxides from 3.5% to less than 0.5%,otherwise IACS Member States Entry to the port is denied. in order to do that need to LNG storage tank. inthis study characteristic of the material after line heating (600℃,700℃,800℃,900℃) of 9% Ni steel used in themanufacture of LNG fuel tank of ship were verified using by mechanical test. In the heating method by lineheating. The initial properties of steel are changed by variables such as temperature, time, speed. Theexperimental data of line heating presented in this paper confirmed that the initial change of 9% Ni steel couldbe minimized.

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