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Predicting output power of roof wind turbine with different inflow conditions |
JING Kunyao1, WANG Jianwen1,2, ZHANG Liru1,2, HE Lingli2 |
1.College of Energy and Power Engineering Inner Mongolia University of Technology, Hohhot, Inner Mongolia 010051, China; 2.Key Laboratory for Wind and Solar Power Energy Utilization Technology, Ministry of Education and Inner Mongolia Construction, Hohhot, Inner Mongolia 010051, China |
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Abstract In the light of the complex and variable of terrain and wind energy on the the city building, the index, logarithmic and semilogarithmic wind profiles were established according to 3 kinds of typical surface roughness of urban and suburban to explore the influence of inflow condition on output po-wer of roof wind turbine.An S airfoil horizontal axis wind turbine was selected as the calculation modle, which was mounted at the appropriate location on the flat roof. User Defined Functions was used to load three kinds of inflow conditions, and the turbulence characteristics of the flow field and the output power of the wind turbine were numerically calculated. Results show that under the index, the accelera-tion effect is smaller and the turbulence intensity is higher, not suitable for wind turbine installation. Although the power of wind turbine is higher under logarithmic inflow, turbulence intensity is bigger, the number of wind turbine installation and appropriate location will be reduced, and there exist the problems such as structural damage and cost increase The flow separation,speed block and the turbulence intensity are all small under semi logarithmic inflow, the building wind-collecting effect is obvious, which is suitable to install more wind turbines, and can avoid the damage of wind turbine structure.
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Received: 29 August 2016
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[1]FRANCISCO T S, ANTONIO C S, MANUEL C G. Urban wind energy exploitation systems: Behaviour under multidirectional flow conditions—Opportunities and challenges[J]. Renewable and sustainable energy reviews,2013,24:364-378.[2]LEDO L,KOSASIN P B,COOPER P. Roof mounting site analysis for micro-wind turbines[J]. Renewable energy,2011,36(5):1379-1391.[3]BAVUUDORJ O, LEE S K, LEE S.A method of micro-siting of wind turbine on building roof-top by using joint distribution of wind speed and direction, and computational fluid dynamics[J]. Journal of mechanical science and technology, 2012, 26(12): 3981-3988.[4]杨柳,汪建文,马剑龙,等.长方体建筑物屋顶典型位置湍流特性研究[J]. 可再生能源,2015,33(5):662-666. YANG Liu, WANG Jianwen, MA Jianlong, et al.Research on turbulence characteristics of typical location on the roof of rectangular building [J]. Renewable energy, 2015,33(5): 662-666.(in Chinese)[5]袁行飞,张玉. 长方体建筑屋顶风能利用效能研究[J].土木建筑与环境工程,2012,34(3):117-123. YUAN Xingfei,ZHANG Yu.Wind power wtilization efficiency on roof of rectangular buildings[J]. Journal of civil, architectural & environmental engineering, 2012, 34(3): 117-123.(in Chinese)[6]YOSHIE R, MOCHIDA A, TOMINAGA Y, et al. Cooperative project for CFD prediction of pedestrian wind environment in the Architectural Institute of Japan[J]. Journal of wind engineering and industrial aerodynamics,2007,95(10):1551-1578.[7]HEATH M A, WALSHE J D,WATSON S J.Estimating the potential yield of small building-mounted wind turbines[J].Wind energy,2007,10(3):271-287.[8]王强,汪建文,侯亚丽. 集装箱顶风力机的微观选址及功率预测研究[J].太阳能学报,2015,36(4):812-817. WANG Qiang, WANG Jianwen, HOU Yali. Study on micrositing and power prediction on wind turbine at top of the container[J]. Acta energiae solaris sinica,2015,36(4): 812-817.(in Chinese)[9]王强,汪建文,侯亚丽,等. 基于U-ABL理论屋顶风力机微观选址数值方法[J].排灌机械工程学报,2015,33(9):781-786. WANG Qiang, WANG Jianwen, HOU Yali, et al. Numerical method for roof mounted wind turbine micrositing based on U-ABL[J]. Journal of drainage and irrigation machinery engineering,2015,33(9):781-786.(in Chinese)[10]代元军,汪建文,吴伟民,等. S系列新翼型风力机叶尖近尾迹区域流场数值计算与分析[J]. 太阳能学报,2014,35(2):195-201. DAI Yuanjun,WANG Jianwen,WU Weimin, et al. Numerical calculation and analysis of blade tip near wake region of S series new airfoil wind turbine[J]. Acta energiae solaris sinica, 2014,35(2):195-201.(in Chinese) |
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