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Wind resource characteristics and energy yield for micro wind turbines integrated on noise barriers – An experimental study
Journal of Wind Engineering and Industrial Aerodynamics ( IF 4.8 ) Pub Date : 2020-08-01 , DOI: 10.1016/j.jweia.2020.104206
Nikolaos Chrysochoidis-Antsos , Andrea Vilarasau Amoros , Gerard J.W. van Bussel , Sander M. Mertens , Ad J.M. van Wijk

This paper assesses wind resource characteristics and energy yield for micro wind turbines integrated on noise barriers. An experimental set-up with sonic anemometers placed on top of the barrier in reference positions is realized. The effect on wind speed magnitude, inflow angle and turbulence intensity is analysed. The annual energy yield of a micro wind turbine is estimated and compared using data from a micro-wind turbine wind tunnel experiment and field data. Electrical energy costs are discussed as well as structural integration cost reduction and the potential energy yield could decrease costs. It was found that instantaneous wind direction towards the barrier and the height of observation play an influential role for the results. Wind speed increases in perpendicular flows while decreases in parallel flow, by +35% down to −20% from the reference. The azimuth of the noise barrier expressed in wind field rotation angles was found to be influential resulted in 50%–130% changes with respect to annual energy yield. A micro wind turbine (0.375 ​kW) would produce between 100 and 600 ​kWh annually. Finally, cost analysis with cost reductions due to integration and the energy yield changes due to the barrier, show a LCOE reduction at 60%–90% of the reference value.

中文翻译:

集成在隔音屏障上的微型风力发电机的风资源特性和发电量——一项实验研究

本文评估了集成在噪声屏障上的微型风力涡轮机的风资源特性和能量产出。实现了在参考位置的屏障顶部放置声波风速计的实验装置。分析了对风速大小、入流角和湍流强度的影响。使用来自微型风力涡轮机风洞实验和现场数据的数据来估计和比较微型风力涡轮机的年发电量。讨论了电能成本以及结构集成成本的降低和潜在的能源产量可以降低成本。发现朝向障碍物的瞬时风向和观测高度对结果有影响。垂直流中风速增加,平行流中风速减小,从参考值下降 +35% 至 -20%。发现以风场旋转角表示的噪声屏障的方位角会导致年能量产量发生 50%–130% 的变化。一台微型风力涡轮机 (0.375 kW) 每年可产生 100 至 600 kWh。最后,通过集成导致的成本降低和屏障导致的能源产量变化的成本分析显示,LCOE 降低了参考值的 60%–90%。
更新日期:2020-08-01
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