期刊
RENEWABLE ENERGY
卷 121, 期 -, 页码 688-699出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2018.01.085
关键词
Tidal energy; Tidal blade design; Stall-regulated HATT and pitch-regulated; HATT; Composite materials; Fatigue life
资金
- Science Foundation Ireland through the Advance Award [14/ADV/RC3022]
- Marine and Renewable Energy Ireland (MaREI) Centre [12/RC/2305]
- European Union under Framework 7 through the MARINCOMP Project [FP7-612531]
- Engineering and Physical Sciences Research Council [EP/P007805/1, EP/P029922/1] Funding Source: researchfish
- Science Foundation Ireland (SFI) [14/ADV/RC3022] Funding Source: Science Foundation Ireland (SFI)
- EPSRC [EP/P007805/1, EP/P029922/1] Funding Source: UKRI
Tidal turbine blades are subject to harsh loading and environmental conditions, including large thrust and torsional loadings, relative to wind turbine blades, due to the high density of seawater, among other factors. The complex combination of these loadings, as well as water ingress and associated composite laminate saturation, have significant implications for blade design, affecting overall device design, stability, scalability, energy production and cost-effectiveness. This study investigates the effect of seawater ingress on composite material properties, and the associated design and life expectancy of tidal turbine blades in operating conditions. The fatigue properties of dry and water-saturated glass fibre reinforced laminates are experimentally evaluated and incorporated into tidal blade design. The fatigue lives of pitch- and stall-regulated tidal turbine blades are found to be altered by seawater immersion. Water saturation is shown to reduce blade life about 3 years for stall-regulated blades and by about 1-2 years for pitch-regulated blades. The effect of water ingress can be compensated by increased laminate thickness. The tidal turbine blade design methodology presented here can be used for evaluation of blade life expectancy and tidal device energy production. (C) 2018 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据