AN EXPERIMENTAL AND NUMERICAL STUDY ON THE PERFORMANCE OF AN INNOVATIVE VERTICAL-AXIS WIND TURBINE

Katarzyna Kludzińska; Krzysztof Tesch; Piotr Doerffer

doi:10.7712/100016.2320.10249

AN EXPERIMENTAL AND NUMERICAL STUDY ON THE PERFORMANCE OF AN INNOVATIVE VERTICAL-AXIS WIND TURBINE

Abstract

This paper introduces the innovative modification of the Savonius wind turbine being able to significantly increase efficiency in comparison with the classic design. This innovative design is equipped with a stator directing the flow. The presence of the stator increases the active surface area and generates higher torques acting on a shaft. Additionally, it makes it possible to take better advantage of wind energy and compensate the effect of larger active surface area. The larger the stator angle the higher the efficiency. One of the biggest problem of the classic design, namely its relatively low efficiency, is overcome. The results of an experimental investigation, carried out in the closed return wind tunnel, are presented for various conditions and configurations. These include the most important characteristic such as the torque and power coefficient as a function of the tip speed ratio. Furthermore, a three dimensional numerical analysis of the transient phenomena occurring in the innovative turbine is investigated. Evaluation and comparison criteria are proposed in order to evaluate and compare various designs and solutions. This makes it possible to explain the increased efficiency of the innovative design.

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Category:: Conference activity
Type:: publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
Title of issue:: ECCOMAS Congress 2016 VII European Congress on Computational Methods in Applied Sciences and Engineering strony 1 - 8
Language:: English
Publication year:: 2016
Bibliographic description:: Kludzińska K., Tesch K., Doerffer P.: AN EXPERIMENTAL AND NUMERICAL STUDY ON THE PERFORMANCE OF AN INNOVATIVE VERTICAL-AXIS WIND TURBINE// ECCOMAS Congress 2016 VII European Congress on Computational Methods in Applied Sciences and Engineering / ed. M. Papadrakakis, V. Papadopoulos, G. Stefanou, V. Plevris (eds.) Grecja: Institute of Structural Analysis and Antiseismic Research, School of Civil Engineering, National Technical University of Athens, 2016, s.1-8
DOI:: Digital Object Identifier (open in new tab) 10.7712/100016.2320.10249
Verified by:: Gdańsk University of Technology