Felia Natasya - Academia.edu (original) (raw)
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Universidade Federal de Santa Catarina - UFSC (Federal University of Santa Catarina)
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Papers by Felia Natasya
In shipping industry, energy efficiency has become a major attention to reduce the fuel consumpti... more In shipping industry, energy efficiency has become a major attention to reduce the fuel consumption and emission. One of the way to create those fuel savings is by optimizing the voyage by choosing the optimum speed for each suitable water area. Many ships are passing through canal to cut the voyage time or sometimes ship travels through river area, which is common for inland water transport. The influence of restricted water can be an issue to optimize the voyage. Referring to a work by Hafidh, a tool has been developed using the ship design parameter from a general cargo ship, which operates in a canal. The modelling of ship calm water resistance and additional resistance due to restricted water are processed using MATLAB-Simulink software. The tool is able to optimize the voyage by giving out the value of power and fuel consumed (€/nm) for a certain speed value under different water depth and breadth. The result of the analysis show that when the ship is operated in restricted water area with water depth 5 m, and water breadth 50 m, the power needed to achieve speed 7 knots is 150 kW higher than the power needed to achieve the same speed on water depth 7 m and water breadth 50 m. For a ship to go lower by 0.5 knots at 6.0 knots with water depth 3 m and water breadth 50 m, 221 € of fuel cost can be saved with other economic parameters considered as constant.
In shipping industry, energy efficiency has become a major attention to reduce the fuel consumpti... more In shipping industry, energy efficiency has become a major attention to reduce the fuel consumption and emission. One of the way to create those fuel savings is by optimizing the voyage by choosing the optimum speed for each suitable water area. Many ships are passing through canal to cut the voyage time or sometimes ship travels through river area, which is common for inland water transport. The influence of restricted water can be an issue to optimize the voyage. Referring to a work by Hafidh, a tool has been developed using the ship design parameter from a general cargo ship, which operates in a canal. The modelling of ship calm water resistance and additional resistance due to restricted water are processed using MATLAB-Simulink software. The tool is able to optimize the voyage by giving out the value of power and fuel consumed (€/nm) for a certain speed value under different water depth and breadth. The result of the analysis show that when the ship is operated in restricted water area with water depth 5 m, and water breadth 50 m, the power needed to achieve speed 7 knots is 150 kW higher than the power needed to achieve the same speed on water depth 7 m and water breadth 50 m. For a ship to go lower by 0.5 knots at 6.0 knots with water depth 3 m and water breadth 50 m, 221 € of fuel cost can be saved with other economic parameters considered as constant.