ウェザールーティングによる燃料節約 : コンテナ船の航海データを用いたシミュレーション

概要

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Since fuel cost occupies very large part in total ship operation cost, it is crucial to save the fuel consumption during the voyage. In this paper, actual voyage data of the container ship were analyzed and empirical formulae to predict ship's speed and engine power in waves were derived. Then specifying the passage time, two methods of calculating minimum fuel route were proposed, i.e. isochrone method controlling only ship's heading and dynamic programming controlling both ship's heading and the number of propeller revolutions. Using actual wave data of the North Pacific, simulations of minimum fuel routing based on the isochrone method were carried out and the effectiveness of weather routing by this method was fully demonstrated. In addition, minimum fuel routes computed by dynamic programming were compared with those computed by isochrone method, and it was clarified that the control of ship's heading (i.e. route selection) is much more effective than the control of the number of propeller revolutions to save the fuel.
社団法人日本航海学会の論文
2004-09-25