风帆助航对船舶主机油耗率的影响

The Influence of Wind-aided Sailing on the fuel Consumption rate of the Main Engine

加装风帆是船舶节能的有效途径,但风帆助航会影响船舶主机和其他系统的运行状况,对船舶能效的影响主要来自主机工况的改变。本文通过分析加装风帆后对螺旋桨工作特性的影响,推导出了计算主机油耗率的方法,并使用某超大型油轮(VLCC)的相关参数进行验证计算,证明此方法简单实用,可为计算风帆助航船舶能效指数EEOI等相关参数提供参考。

The installation of sails is an effective way for ships to save energy.But the wind-aided sailing will affect the operating conditions of main engine and other systems.The impact on the ship's energy efficiency mainly comes from changes in the main engine operating conditions.The influence of EEOI mainly comes from the change of main engine condition.This paper analyzes the influence of installing sail on propeller performance.And the method of calculating the fuel consumption rate of main engine is derived.And the relative parameters of a VLCC are used to verify the calculation.The result showed that this method is simple and practical.It can provide reference for calculating the EEOI and other related parameters of wind-aided sailing ship.