Pneumatic Performance of Staggered Impulse Turbine for OWC Wave Energy Convertor

被引：0

作者：

CUI Ying ^{[1
,2
]}

LIU Zhen ^{[1
,3
,4
]}

BeomSoo Hyun ^{[2
]}

机构：

[1] Department of Ocean Engineering, College of Engineering, Ocean University of China

[2] Division of Naval Architecture and Ocean Engineering, Korea Maritime and Ocean University

[3] Shandong Provincial Key Laboratory of Ocean Engineering, Ocean University of China

[4] Qingdao Municipal Key Laboratory of Ocean Renewable Energy, Ocean University of China

来源：

Journal of Thermal Science | 2015年 / 24卷 / 05期

关键词：

Wave Energy; Oscillating Water Column; Staggered Impulse Turbine; Asymmetric Air Flows; Numerical Simulation; Quasi-steady Analysis;

D O I：

暂无

中图分类号：

TK735 [冲击式水轮机];

学科分类号：

080703 ; 080704 ;

摘要：

A staggered impulse turbine is proposed for asymmetric air flows in Oscillating Water Column wave energy plants, which is expected to enhance the pneumatic power output in a wave cycle. The setting angle of rotor blades is set as 5°. The 3D numerical simulations were conducted under steady conditions using MRF and Mixing Plane model based on CFD software Fluent 12.0. Its mean efficiencies under different velocity amplitude ratios are studied using quasi-steady analysis, which derive corresponding data from the numerical simulation. It is found that the staggered turbine shows better performance than the conventional one under the asymmetrical air flows. Furthermore, its mean efficiency and output-work in a wave period are compared with another unsymmetrical twin impulse turbine system. The results show that the staggered turbine shows better output-work performance than the twin turbine system over the high flow coefficient domain(φ>0.7), which provides more choices to future research on turbine's optimization.

引用

页码：403 / 409

页数：7

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