Research on the influence of flake-type blade winglet on the performance of a horizontal-axis wind turbine system
碩士 === 中原大學 === 機械工程研究所 === 102 === This thesis conducts a study on the performance of a horizontal-axis wind turbine system with flake-type blade winglet. Also, an analysis of the effect of blade curvature is performed. The main purpose is to investigate the influence of flake-type blade winglet on...
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ndltd-TW-102CYCU54890282019-05-15T21:23:54Z http://ndltd.ncl.edu.tw/handle/wq82kq Research on the influence of flake-type blade winglet on the performance of a horizontal-axis wind turbine system 薄片型葉片小翼對水平軸風力機系統性能之研究 Yi-Ling Lin 林怡伶 碩士 中原大學 機械工程研究所 102 This thesis conducts a study on the performance of a horizontal-axis wind turbine system with flake-type blade winglet. Also, an analysis of the effect of blade curvature is performed. The main purpose is to investigate the influence of flake-type blade winglet on its mechanical energy, electrical energy, and conversion efficiency for different wind speeds. First, we design the blades with different winglet curvatures by using flake-type galvanized iron sheets. Second, we connect all the blades to the rotor hub and combine it to the generator. Third, we measure the wind speed, rotational speed, torque, and power generation in the wind tunnel testing system, so as to calculate the horizontal-axis wind turbine system performance data at different wind speeds. Finally, we use STAR-CCM+ for simulation to analyze the blade surface pressure, velocities, and streamlines, so as to realize the cause of dynamic behavior of the wind turbine system. Results show that, when the value of the winglet curvature radius increases at a fixed blade curvature, all the mechanical energy, electrical energy, and conversion efficiency increase to their maxima and then decrease for different wind speeds. At a further larger radius, a system with winglet does not necessarily have a better performance than that without winglet. It is also found that changing the blade curvature radius can further magnify the system performance. The performance also has an optimum value for a particular curvature radius. Huei Chu Weng 翁輝竹 2014 學位論文 ; thesis 71 zh-TW |
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碩士 === 中原大學 === 機械工程研究所 === 102 === This thesis conducts a study on the performance of a horizontal-axis wind turbine system with flake-type blade winglet. Also, an analysis of the effect of blade curvature is performed. The main purpose is to investigate the influence of flake-type blade winglet on its mechanical energy, electrical energy, and conversion efficiency for different wind speeds. First, we design the blades with different winglet curvatures by using flake-type galvanized iron sheets. Second, we connect all the blades to the rotor hub and combine it to the generator. Third, we measure the wind speed, rotational speed, torque, and power generation in the wind tunnel testing system, so as to calculate the horizontal-axis wind turbine system performance data at different wind speeds. Finally, we use STAR-CCM+ for simulation to analyze the blade surface pressure, velocities, and streamlines, so as to realize the cause of dynamic behavior of the wind turbine system.
Results show that, when the value of the winglet curvature radius increases at a fixed blade curvature, all the mechanical energy, electrical energy, and conversion efficiency increase to their maxima and then decrease for different wind speeds. At a further larger radius, a system with winglet does not necessarily have a better performance than that without winglet. It is also found that changing the blade curvature radius can further magnify the system performance. The performance also has an optimum value for a particular curvature radius.
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author2 |
Huei Chu Weng |
author_facet |
Huei Chu Weng Yi-Ling Lin 林怡伶 |
author |
Yi-Ling Lin 林怡伶 |
spellingShingle |
Yi-Ling Lin 林怡伶 Research on the influence of flake-type blade winglet on the performance of a horizontal-axis wind turbine system |
author_sort |
Yi-Ling Lin |
title |
Research on the influence of flake-type blade winglet on the performance of a horizontal-axis wind turbine system |
title_short |
Research on the influence of flake-type blade winglet on the performance of a horizontal-axis wind turbine system |
title_full |
Research on the influence of flake-type blade winglet on the performance of a horizontal-axis wind turbine system |
title_fullStr |
Research on the influence of flake-type blade winglet on the performance of a horizontal-axis wind turbine system |
title_full_unstemmed |
Research on the influence of flake-type blade winglet on the performance of a horizontal-axis wind turbine system |
title_sort |
research on the influence of flake-type blade winglet on the performance of a horizontal-axis wind turbine system |
publishDate |
2014 |
url |
http://ndltd.ncl.edu.tw/handle/wq82kq |
work_keys_str_mv |
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