摘要
修改船舶推进系统能大大改善推进效率。讨论了改变螺旋桨直径、叶数、转速和设计点对推进效率的影响,还考虑了在船体上安装导管,特别是高效导管和其他节能装置。当考虑更换螺旋桨时,文中提出了有价值的修改方案。
Significant propulsive efficiency improvements can be achieved by modifying the propulsive system of a vessel. Here we discuss the impact of changes to the propeller＇s diameter, number of blades, rate of revolutions and design point. We also consider the application of a nozzle,especially the HR nozzle,and other energy saving devices to the ship hull. The proposed modifications are definitely worth investigating when considering propeller replacement.
出处
《世界海运》
2005年第4期5-7,共3页
World Shipping
关键词
定距桨
推进效率
船舶节能
fixed pitch propeller
propulsive efficiency
ship energy saving
