Computational investigation of LNG storage tank for open type ferries

• Main Authors: Theotokatos, G., Livanos, G.A., Strantzali, E., Dimitrellou, S., Pagonis, D.N., Peirounakis, D., Mizithras, P.
• Other Authors: Soares, C. Guedes, Dejhalla, R., Pavletić, D.
• Format: Book Part
• Language: unknown
• Published: CRC Press/Balkema 2015
• Subjects: Hydraulic engineering. Ocean engineering; Close Islands
• Online Access: https://strathprints.strath.ac.uk/56146/; https://doi.org/10.1201/b18855-62

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.