摘要
为适应IMO对"新船能效设计指数(EEDI)"的新要求,减少有害物排放,分析了EEDI指数与船舶压载水的关联性,设计了一套可用于去除海水中不同直径颗粒泥沙的旋流器,对旋流器内的切向速度、静压等进行了数值模拟。实验测试结果显示,该旋流器对直径10μm以上的泥沙分离率达到90%以上,总体过滤性能达到90.43%,能减少压载水泥沙含量,从而达到降低EEDI指数目的。
In order to meet the IMO new requirements of ＂New Ship Energy Efficiency Design Index＂ （EEDI） and to reduce harmful emissions, it is analyzed the association of EEDI index with ballast water. The hydrocyclone for removal of different diameter particle sediment in seawater is designed Numerical simulation of the tangential velocity and static pressure is carried out. The experimental results show that, the separation rate for sediment over 10 μm diameter can reach more than 90%, and the overall filter performance can reach 90. 43% which can reduce the load of sand content and thereby reduce the EEDI index.
出处
《船舶工程》
北大核心
2014年第6期46-49,92,共5页
Ship Engineering
关键词
EEDI
压载水
除沙
旋流器
EEDI
ballast water
remove sand
hydroeyclone
