Optimal Shape and Boil-Off Gas Generation of Fuel Tank for LNG Fueled Tugboat

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This paper proposes the optimal shape of an LNG fuel tank with a lattice pressure vessel (LPV) design for a tugboat. The LPV is a Type C tank with a design philosophy of “design by analysis,” which facilitates greater variability of shape compared with other traditional Type C tanks. Further, compared with conventional cylindrical fuel tanks, the LPV provides better volumetric efficiency. Considering the shape of a fuel tank room, a trapezoidal shape of the LPV is concluded as the most optimal design. This study performs two major analyses of the LPV: structural and heat transfer analyses. First, a design procedure of the LPV based on structural analyses is elaborated. The finite element method is used for the analyses. Furthermore, the results guarantee that the maximum stresses by applied loads do not exceed an allowable stress limitation. Second, the heat transfer analysis of the LPV is conducted. LNG boil-off gas generation is analyzed based on various insulation materials and the degree of acuum.
Publisher
한국해양공학회
Issue Date
2020-02
Language
English
Citation

한국해양공학회지, v.34, no.1, pp.19 - 25

ISSN
1225-0767
DOI
10.26748/KSOE.2019.103
URI
http://hdl.handle.net/10203/281377
Appears in Collection
ME-Journal Papers(저널논문)
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