Wind resource characteristics and energy yield for micro wind turbines integrated on noise barriers - An experimental study

被引:9
作者
Chrysochoidis-Antsos, Nikolaos [1 ]
Amoros, Andrea Vilarasau [1 ]
van Bussel, Gerard J. W. [2 ]
Mertens, Sander M. [3 ]
van Wijk, Ad J. M. [1 ]
机构
[1] Delft Univ Technol, Proc & Energy Dept, Delft, Netherlands
[2] Delft Univ Technol, Wind Energy Grp, Delft, Netherlands
[3] The Hague Univ Appl Sci, Energy Transit, The Hague, Netherlands
关键词
Micro wind turbines; Noise barrier; Field experiment; Urban energy; LCOE; TURBULENCE; DIRECTION; INFLOW; TUNNEL; IMPACT; SCALE; FLOW;
D O I
10.1016/j.jweia.2020.104206
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
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.
引用
收藏
页数:15
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