Method and Evaluation of a Simplified Propulsion Performance Estimation for Eco-Friendly Navigation Planning Support System

在本研究中，我们提出了一种适用于环保型导航规划支持系统这类天气路径系统的简化推进性能评估方法。现有的方法需要船体形状的文件，但这些文件通常被认为是商业秘密。该方法适用于一般特性(至少是长度、宽度、深度)已知的船舶。我们提出了一种方法，并编制了程序，其中包含了利用多个船舶的一般特性来方便地估计风浪阻力系数的计算公式。最后，通过一艘商船对该方法进行了评估。结果表明，该方法在油耗降低效果和船舶航速估计精度方面与现有方法相差不大。

In this research, we proposed a simplified propulsion performance estimation method for Eco-Friendly Navigation Planning Support System, a type of weather routing systems. The existing method needs hull shape documents, but the documents is generally considered as trade secrets. The proposed method is applicable for ships whose general characteristics (at least Length, Breadth, depth) are known.We proposed the method and a program which contains calculating formulas to estimate wind, wave resistance coefficients easily with several values of ship's general characteristics.We evaluate the method by using a merchant ship. We found quite little difference of fuel consumption reduction effects and vessel speed estimation accuracy between the proposed and the existing method.