摘要
为了促进深远海养殖装备朝智能化方向发展,解决电能供给困难的问题,克服抗风浪网箱受波流耦合作用对太阳能和风能利用的局限性的问题,针对养殖区域的低流速海域,提出了一种适用于深远海可升降网箱的横轴半潜式潮流能发电装置,建立了Savonius型水轮机叶片受力数学模型,分析了叶轮中心与水面的距离对水轮机捕能效率的影响,利用Fluent软件数值模拟了导流增速浮体的速度场情况,设计了发电装置整体结构及锚泊系统,搭建了发电装置试验模型,开展了物理模型试验,测试了不同水流速度情况下与叶轮相对离水距有关的各参数变化情况,并对试验数据进行分析。试验结果表明,在不同的水流流速下,随着离水距的不断增加,捕获功率呈先增加后减小的趋势,当叶轮中心高出水面1/4个叶轮直径时,叶轮的输出功率最大。
In order to promote the development of deep-sea aquaculture equipment towards intelligentization,solve the problem of difficult power supply,and overcome the limitations of solar-power and wind energy utilization by the coupling of wave-flow resistance of wind-resistant cages,and aiming at the low-flow sea area in the aquaculture area,a horizontal semisubmersible tidal energy power generation device suitable for deep-sea hoisting cages is proposed.The mathematical model of Savonius turbine blade of force is established,the influence of distance between impeller center and water surface on the efficiency of water turbine energy capture is analyzed,and the velocity field of floating body of diversion increasing speed is numerically simulated by fluent software。The overall structure and mooring system of the power generating device are designed.The experimental model of the power generating device is built,and the physical model experiment is carried out.The parameters related to impeller relative distance from water under different flow velocities are tested,and the experimental data analyzed.The experimental results show that under different water flow rates,as the distance from the water increases,the capture power increases first and then decreases.When the impeller center is higher than the 1/4 impeller diameter of the water surface,the output power of the impeller is the largest.
作者
黄方平
鲍灵杰
彭天好
陈俊华
姜楚华
HUANG Fangping;BAO Lingjie;PENG Tianhao;CHEN Junhua;JIANG Chuhua(School of Mecharical Engineering,Zhejiang University,Hangzhou 310058,China;School of Mechanical Engineering,Anhui University of Science&Technology,Huainan 232001,China;Ningbo Insitute of Technology,Zhejiang University,Ningbo 315100,China)
出处
《海洋工程》
CSCD
北大核心
2020年第5期116-124,共9页
The Ocean Engineering
基金
国家海洋局专项资金(NBME2011CL02)
宁波市重大科技攻关项目(2015C110015)
宁波市自然科学基金项目(2014A610091)。
关键词
深海网箱养殖
低流速
潮流能
横轴
半潜式
发电装置
水轮机
offshore cages
low velocity current
tidal energy
horizontal axis
semisubmersible
power generation device
hydraulic turbine
