Abstract
Objectives: The turbine is of 1.5 m diameter and two bays of 0.5 m length blades NACA 0015 airfoil profile is used for the fabrication of hydrofoil blades. Glass fibre reinforced poly pipeline is used for the fabrication of the blades. The blades are assembled to a 50mm KTEC pipe to form a 1.5 m diameter ring. 200 watts ultra low speed Permanent Magnet Alternator (PMA) was used with suitable electronic circuit and battery backup. Methods/Statistical Analysis: Filed trials were conducted in the salt extraction filed of Chemfab Industries at Marakkanam. Since the initial results are encouraging and proves the technology of the concept, it is proposed to develop more turbines. Findings: In this paper development and results of the field trials of an ultra low wind speed vertical axis wind turbine are presented. Application/Improvements: This type for use in the coastal areas with larger dimensions to harvest higher green energy.
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