Aerodynamic performance of NACA four-digit profiles in small-scale wind turbines for small farms

被引：3

作者：

Costa Rocha, Paulo Alexandre ^{[1
]}

Albiero, Daniel ^{[2
]}

Gomes Fernandes, Marcos Paulo ^{[3
]}

Fernandes, Jefferson Lemos ^{[4
]}

机构：

[1] Univ Fed Ceara, Dept Engn Mecan, Engn Mecan, DEM UFC, Fortaleza, Ceara, Brazil

[2] DENA UFC, Dept Engn Agr, Engn Agr, Fortaleza, Ceara, Brazil

[3] Petrobras SA, Engn Mecan Petroleo Brasileiro SA, Macae, RJ, Brazil

[4] DEM UFC, Mecan, Fortaleza, Ceara, Brazil

来源：

SEMINA-CIENCIAS AGRARIAS | 2015年 / 36卷 / 03期

关键词：

Wind energy; aerodynamic profile; small-scale wind turbine; ENERGY;

D O I：

10.5433/1679-0359.2015v36n3p1227

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

In Brazil, there are many places that do not have access to electric energy, mainly in rural areas with small farms. This situation has accentuated the importance of renewable energy sources, such as wind energy. This work consisted of the design, construction and field testing of two small three-bladed wind turbines with two different aerodynamic profiles. The aim of the study was to compare the profile influence on the turbine aerodynamic performance. Using the blade element momentum (BEM) theory, two wind turbines were designed and built with different cross-section aerodynamic profiles (NACA 0012 (symmetric) and 4412 (chambered)). Following statistical analysis, the results of the field tests demonstrated that the performances of the turbines are similar when the rotational speed is near the designed value (lambda = 5). However, when the rotational speed is under or above the designed value, the NACA 4412 profile yields superior performance.

引用

页码：1227 / 1239

页数：13

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