The paper presents an integrated simulation study aimed at ship’s performance prediction, during both sailing and motor propulsion, for a Combined Diesel eLectric and Wind (CODLAW) propulsion plant installed on board of the illustrious tall ship “Amerigo Vespucci”. The ship, recently interested by a complete platform system revamping, will be equipped with the most innovative IFEP plant (Integrated Full Electric Propulsion), still preserving the rigs to honour the seafaring tradition. The study is focused on the behaviour of the new electric propulsion motor, driving the fixed pitch propeller, during sailing navigation condition, and in particular on the negative effect of the trailing propeller. A newly developed control system will drive the propeller to the “zero thrust” mode during sailing, for several wind conditions, in order to optimize the ship performance. Feasibility and benefits of this propulsion option are investigated through a motor – sailing propulsion simulator, developed in the MatLab-Simulink environment, and off-line CFD analysis carried out for the evaluation of the soft sails aerodynamics.

CODLAW Ship Propulsion Simulation: Performance Optimization by Smart Control

Altosole M;
2014

Abstract

The paper presents an integrated simulation study aimed at ship’s performance prediction, during both sailing and motor propulsion, for a Combined Diesel eLectric and Wind (CODLAW) propulsion plant installed on board of the illustrious tall ship “Amerigo Vespucci”. The ship, recently interested by a complete platform system revamping, will be equipped with the most innovative IFEP plant (Integrated Full Electric Propulsion), still preserving the rigs to honour the seafaring tradition. The study is focused on the behaviour of the new electric propulsion motor, driving the fixed pitch propeller, during sailing navigation condition, and in particular on the negative effect of the trailing propeller. A newly developed control system will drive the propeller to the “zero thrust” mode during sailing, for several wind conditions, in order to optimize the ship performance. Feasibility and benefits of this propulsion option are investigated through a motor – sailing propulsion simulator, developed in the MatLab-Simulink environment, and off-line CFD analysis carried out for the evaluation of the soft sails aerodynamics.
978-605-4123-31-5
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/805236
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