Multi-objective optimisation of a floating LNG terminal |
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| Authors: | Evangelos K Boulougouris Apostolos D Papanikolaou |
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| Institution: | aNational Technical University of Athens, School of Naval Architecture and Marine Engineering, Ship Design Laboratory, 9, Heroon Polytechniou Str., 15773 Zografou, Athens, Greece |
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| Abstract: | The paper presents a comprehensive multi-objective hydrodynamic optimisation procedure and its application to the early design of a floating liquefied natural gas (LNG) terminal for improved seakeeping and wave attenuation characteristics on its lee side. Genetic algorithms are used to find the Pareto optima designs followed by multi-objective decision making procedures to select the optimum design among them. The paper addresses the definition of the relevant optimisation problem and the set-up and interface of relevant software tools, presents results of systematic studies with respect to the minimisation of the motion responses and wave elevation on the leeward side of free-floating terminals and concludes with analysis and critical review of the obtained results and their impact on terminal design. |
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| Keywords: | Gas import floating terminal (GIFT) Seakeeping Genetic algorithms Pareto designs Multi-criteria optimisation Multi-criteria decision making |
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