叶片数对管内水轮机水力性能影响的研究

IF 0.9 Q4 ENGINEERING, MECHANICAL

International Journal of Rotating Machinery Pub Date : 2019-07-22 DOI:10.1155/2019/8394191

S. A. Payambarpour, A. Najafi, F. Magagnato

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引用次数: 9

摘要

近年来，由于污染和环境问题的增加，清洁能源的利用水平急剧提高。例如，供水系统中的额外势能由于其低容量而通常被浪费。为了应用这种清洁能源，设计合适的涡轮机最近受到了研究人员的更多关注。本文设计了一种适用于4英寸管道的改进型Savonius涡轮机。带有两个叶片的涡轮机在实验室装置中进行了测试，并使用FLUENT软件进行了模拟。通过将数值结果与实验室结果相匹配，扩展了模拟范围，并研究了在确定的水力条件下叶片数量对涡轮机性能的影响。修改后的Savonius涡轮机周围的流场通过三维流线和压力等值线进行解释。所获得的结果表明，将涡轮机叶片数量增加到5个或更多分别导致涡轮机效率首先上升然后下降。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Investigation of Blade Number Effect on Hydraulic Performance of In-Pipe Hydro Savonius Turbine

Level of utilization of clean energy has grown dramatically in recent years due to increased pollution and environmental issues. For instance, the extra potential energy in water supply system is usually wasted, due to its low capacity. Design of a proper turbine has recently been given more attention by researchers to apply this clean energy. In the present paper, a modified Savonius turbine, suitable for use in a 4-inch pipe, is designed. Turbine with two blades is tested in a laboratory rig and also simulated with the FLUENT software. By matching numerical and laboratory results, simulations are expanded and the blades number effect on turbine performance is studied under determined hydraulic conditions. The flow field around the modified Savonius turbine is interpreted by the 3D streamlines and pressure contours. The obtained results indicate that increasing the turbine blade numbers up to 5 and more causes the turbine efficiency first to rise and then to fall, respectively.

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来源期刊

International Journal of Rotating Machinery ENGINEERING, MECHANICAL-

CiteScore

2.40

自引率

0.00%

发文量

审稿时长

25 weeks

期刊介绍： This comprehensive journal provides the latest information on rotating machines and machine elements. This technology has become essential to many industrial processes, including gas-, steam-, water-, or wind-driven turbines at power generation systems, and in food processing, automobile and airplane engines, heating, refrigeration, air conditioning, and chemical or petroleum refining. In spite of the importance of rotating machinery and the huge financial resources involved in the industry, only a few publications distribute research and development information on the prime movers. This journal is the first source to combine the technology, as it applies to all of these specialties, previously scattered throughout literature.