NEW PERSPECTIVE VERSION OF BI-DARRIEUS WINDTURBINE
Ainakul Yershina
Pages: 465-472
Published: 2 Jun 2014
Views: 2,866
Downloads: 726
Abstract: There are a great variety of wind turbine constructions but by their principle of operation they are divided into three main types - sail (Savonius wind power unit), propeller and airfoils (Darrie wind turbine). At present, propeller-type wind-turbines are the most widely spread. They are produced on a commercial level in many countries. Other conditions being equal, the power produced by wind power unit (WPU) is proportional to the area being swept around by a wind wheel. Therefore, Megawatt propeller-type wind turbines have blades with the length of 40 and more meters. Only aircraft works with a highly-qualified personnel and corresponding equipment can produce such long blades of a specific shape. Of high interest have become airfoil wind turbines (Darrie WPU) lately. They are of a simpler construction and have a quite high wind power utilization factor (ΞΎ=0.45). In spite of the fact that this is a good index of WPU efficiency, the workers of al-Farabi Kazakh National University have developed a new version of a wind turbine which allows increasing 1.3-1.6 times the value of this coefficient. This apparatus is named a Bi-Darrie unit. This paper presents the description of a Bi-Darrie unit, the principle of its operation and the possibility of increasing the wind power utilization factor. Also, the results of testing an acting laboratory model in an aerodynamic tunnel and a full-length apparatus are reported. Video films are attached to the paper.
Keywords: wind turbine, the blade, wind energy utilization coefficient
Cite this article: Ainakul Yershina. NEW PERSPECTIVE VERSION OF BI-DARRIEUS WINDTURBINE. Journal of International Scientific Publications: Materials, Methods & Technologies 8, 465-472 (2014). https://www.scientific-publications.net/en/article/1000196/
Back to the contents of the volume
© 2025 The Author(s). This is an open access article distributed under the terms of the
Creative Commons Attribution License https://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. This permission does not cover any third party copyrighted material which may appear in the work requested.
Disclaimer: The Publisher and/or the editor(s) are not responsible for the statements, opinions, and data contained in any published works. These are solely the views of the individual author(s) and contributor(s). The Publisher and/or the editor(s) disclaim any liability for injury to individuals or property arising from the ideas, methods, instructions, or products mentioned in the content.
