Computational investigation of LNG storage tank for open type ferries

Theotokatos, G. and Livanos, G.A. and Strantzali, E. and Dimitrellou, S. and Pagonis, D.N. and Peirounakis, D. and Mizithras, P.; Soares, C. Guedes and Dejhalla, R. and Pavletić, D., eds. (2015) Computational investigation of LNG storage tank for open type ferries. In: Towards Green Marine Technology and Transport. CRC Press/Balkema, HRV, pp. 465-472. ISBN 9781138028876

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This paper presents the design study of the LNG storage tank for a double-ended ferry operating short distance routes between mainland and close islands in the Greek territory. Alternative tank designs based on different structural characteristics were computationally investigated by conducting a coupled thermal-structural analysis considering steady state conditions and taking into account the applied structural and thermal loads. The tank structural stability was evaluated using von-Mises criteria. The derived results are presented and discussed concluding to the most efficient solution that provides smoother stress distribution, sufficient mechanical strength and increased bending rigidity.