Efficiency improvement of a vertical-axis wind turbine using a deflector optimized by Taguchi approach with modified additive method

Wei Hsin Chen, Jhih Syun Wang, Min Hsing Chang, Justus Kavita Mutuku, Anh Tuan Hoang

研究成果: Article同行評審

54 引文 斯高帕斯(Scopus)

摘要

This study designs a deflector to enhance the performance of a three-bladed vertical axis wind turbine (VAWT) through the Taguchi method in association with a modified additive model (MAM). Two types of the deflector, namely, an upper deflector and a lower deflector, are individually considered. Analysis of variance (ANOVA) is applied to evaluate the influences of design factors on the performance, and the aerodynamic characteristics around the turbine blades are explored. The prediction suggests that the average power coefficients (Cp-) of the VAWT without deflector is 0.46. For the upper deflector design, the Cp- value using MAM can be raised to the highest value of 0.55, while the Cp- value for the lower deflector design is lifted to 0.54, accounting for 20% and 17% improvements compared with the VAWT without a deflector. The application of MAM shows that the distances from the center of the turbine to the bottom of the upper deflector and the top of the lower deflector are the most important factors to influence Cp-, and the interaction between the factors should be considered to provide accurate optimization results. The results of the ANOVA analysis are coincident with those of the Taguchi approach and confirm that a proper installation of a deflector can efficiently intensify the VAWT's performance.

原文English
文章編號114609
期刊Energy Conversion and Management
245
DOIs
出版狀態Published - 2021 10月 1

All Science Journal Classification (ASJC) codes

  • 可再生能源、永續發展與環境
  • 核能與工程
  • 燃料技術
  • 能源工程與電力技術

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