Design of blades for household small wind turbines

Abstract

Many countries have installed horizontal large-scale wind turbine (HLSWT) farms for green generation of electricity but unknowing the long-term consequences of this technology. Recent publications have demonstrated that HLSWT can contribute to weather changes and surface warming increasing precipitation rates. Horizontal household small wind turbines (HHSWTs) have been proposed as a sustainable option to reduce the environmental impact in the generation of electricity by wind energy conversion. However, some issues related to the sustainability and high initial costs of blades materials and processing techniques should be overcome to become HHSWT accessible for the population. In this work, an automated computer-aided design process is supplied for the creation of aerodynamically optimized, monolithic, low-cost and sustainable blades for HHSWT. The procedure presented takes into consideration the environmental conditions of the placement area of the windmill, and it is applicable to obtain blades of any length and with any targeted output power.