• 제목/요약/키워드: Great-circle route

검색결과 1건 처리시간 0.014초

항로최적화기술 시뮬레이션 비교 결과 (Comparative Results of Weather Routing Simulation)

  • 유윤자;최형래;이정렬
    • 대한조선학회논문집
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    • 제52권2호
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    • pp.110-118
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    • 2015
  • Weather routing method is one of the best practices of SEEMP (Ship Energy Efficiency Management Plan) for fuel-efficient operation of ship. KR is carrying out a basic research for development of the weather routing algorithm and making a monitoring system by FOC (Fuel Oil Consumption) analysis compared to the reference, which is the great circle route. The added resistances applied global sea/weather data can be calculated using ship data, and the results can be corrected to ship motions. The global sea/weather data such as significant wave height, ocean current and wind data can be used to calculate the added resistances. The reference route in a usual navigation is the great circle route, which is the shortest distance route. The global sea/weather data can be divided into grids, and the nearest grid data from a ship's position can be used to apply a ocean going vessel's sea conditions. Powell method is used as an optimized routing technique to minimize FOC considered sea/weather conditions, and FOC result can be compared with the great circle route result.