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首页> 外文期刊>Journal of Energy Resources Technology >Four Decades of Research Into the Augmentation Techniques of Savonius Wind Turbine Rotor
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Four Decades of Research Into the Augmentation Techniques of Savonius Wind Turbine Rotor

机译：Savonius风力涡轮机转子增强技术的四个十年研究

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The design and development of wind turbines is increasing throughout the world to offer electricity without paying much to the global warming. The Savonius wind turbine rotor, or simply the Savonius rotor, is a drag-based device that has a relatively low efficiency. A high negative torque produced by the returning blade is a major drawback of this rotor. Despite having a low efficiency, its design simplicity, low cost, easy installation, good starting ability, relatively low operating speed, and independency to wind direction are its main rewards. With the goal of improving its power coefficient (CP), a considerable amount of investigation has been reported in the past few decades, where various design modifications are made by altering the influencing parameters. Concurrently, various augmentation techniques have also been used to improve the rotor performance. Such augmenters reduce the negative torque and improve the self-starting capability while maintaining a high rotational speed of the rotor. The CP of the conventional Savonius rotors lie in the range of 0.12-0.18, however, with the use of augmenters, it can reach up to 0.52 with added design complexity. This paper attempts to give an overview of the various augmentation techniques used in Savonius rotor over the last four decades. Some of the key findings with the use of these techniques have been addressed and makes an attempt to highlight the future direction of research.
机译：风力涡轮机的设计和开发在世界范围内正在增加，以便在不为全球变暖付出很多代价的情况下提供电力。 Savonius风力涡轮机转子，或简称Savonius转子，是一种基于阻力的装置，效率相对较低。由返回叶片产生的高负扭矩是该转子的主要缺点。尽管效率低，但是它的主要优点是其设计简单，成本低，易于安装，启动能力好，运行速度相对较低以及独立于风向。为了提高其功率系数（CP），在过去的几十年中，已经进行了大量的研究，其中通过改变影响参数来进行各种设计修改。同时，还使用了各种增强技术来改善转子性能。这种增力器减小了负转矩并提高了自启动能力，同时保持了转子的高转速。常规Savonius转子的CP值在0.12-0.18的范围内，但是，通过使用增强器，它可以达到0.52，从而增加了设计复杂性。本文试图概述过去40年中Savonius转子中使用的各种增强技术。解决了使用这些技术的一些关键发现，并试图突出研究的未来方向。

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