著者

村井 康二 林 祐司

出版者

日本シミュレーション学会

雑誌

シミュレーション (ISSN:02859947)

巻号頁・発行日

vol.25, no.4, pp.289-296, 2006-12-15

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Recently, the environmental destruction problems are international social problems. The transport systems are important elements for the conservation of the air environment. The environmental parameters are CO_2, NO_x and SO_x from the transport systems. This paper describes the effects of the reduction for CO_2, NO_x and SO_x by systematizing ship's navigation schedule planning (Eco-navigation systems: Eco-navi) which can utilize the tidal current and the wind in inland sea. The Eco-navi consists of three sub-systems: "Cell decision system", "Current calculation system", and "Wind calculation system". We define 'Cell' as the minimum unit for calculating the hours underway. The cell, latitude: 1' ×longitude: 1', has the current and wind information. We can calculate the hours underway by utilizing the current/wind effects. We calculated the hours underway for the neap tides, ligging the tides and the spring tides of 'Kobe' to 'Hesaki' by using the data of training ship Fukae Maru, and its time saving ration is 5.1%, 9.6%, and 14.8% respectively, even if we reduce the system errors (3.8%). We proposed about 5% reduction of air pollution (CO_2, NO_x, SO_x) from the vessel in inland sea.