کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5476759 | 1521420 | 2017 | 34 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Aerodynamic design of horizontal axis wind turbine with innovative local linearization of chord and twist distributions
ترجمه فارسی عنوان
طراحی آیرودینامیکی توربین بادی محور افقی با خطی سازی نوآوری محلی توزیع وتر و پیچ و تاب
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
چکیده انگلیسی
This study is aimed to aerodynamically design a 1 mega-Watt horizontal axis wind turbine in order to obtain the maximum power coefficient by linearizing the chord and twist distributions. A new linearization method has been used for chord and twist distributions by crossing tangent line through different points on them. The results have determined the best point along chord and twist distribution which has higher total power coefficient in the linearization method. When the distribution of chord length and twist angle is linear, blade manufacturing becomes more accurate and easier. Since the geometry of the blades determines the power generated by rotor, designing the blade is a very important issue. Herein, calculations are done for different types of airfoil families namely Risø-A1-21, Risø-A1-18, S809, S814 and Du 93-W-210. Hence, the effect of selecting different airfoil families is also indicated. Lift and drag coefficients of the selected airfoils have been extracted from airfoil catalogue which are determined by XFOIL. Optimum linearized chord and twist distribution by considering total power coefficient as optimization criterion is determined and observed that 60%-64% and 30%-37% of the blade span-wise are the best places for optimum linearization of chord and twist, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 131, 15 July 2017, Pages 78-91
Journal: Energy - Volume 131, 15 July 2017, Pages 78-91
نویسندگان
Mojtaba Tahani, Ghazale Kavari, Mehran Masdari, Mojtaba Mirhosseini,