Sistem for variable pitch vertical axis wind turbine

Abstract

Climate changes and their effect worldwide point toward high need of renewable energy resources exploitation and, consequently, adequate policies on regulation for efficient energy consumption. Wind has been used since ancient times for producing energy and this is why research on wind turbine design and performances has been carried on since. This article is aimed to present new mechanical system for variable pitch vertical axis four blades wind turbine. The pitch angle varies depending on wind flow direction due to cam and follower, linked to a four bar mechanism.