- 期刊
An Improved Design for a Small-Scale Wells Turbine Blade
小型威爾斯渦輪葉片改良設計研究
摘要
威爾斯渦輪(Wells turbine)為一種雙向式葉片曲面設計，常見於水力與風力發電的應用場合。本文提出藉葉片輪廓曲率所決定的關鍵設計點，改良傳統直形葉輪的設計方法，提升渦輪效益。為了評估渦輪轉速與驅動電動機之電功率，本研究開發一簡型的風力發電管，並以CNC 雕刻機製作實驗渦輪原型機，執行田口渦輪實驗，獲得最適參數設計。經 驗證實驗結果證明：本文所提出的設計方案可提升10%左右的渦輪效益。
關鍵字
無資料並列摘要
The Wells turbine blade with a bidirectional curved-surface design is frequently applied for hydropower and wind power generations. This study proposes a new design method to improve traditional straight-shaped blade based on the key-design points determining by curvature of the blade profile and to increase the turbine efficiency. To measure the rotating speed of the electrical generator that the new turbine driven, this study develops a simple wind-generating tube for power evaluation. Experimental turbine prototypes were manufactured by a CNC engraving device, and the optimal parametric design was derived through Taguchi's experiments. Finally, confirmation experiments were performed to verify the outcomes of the improved design. Results showed that the proposed method can enhance the turbine efficiency by 10% approximate.