Small wind turbines with timber blades for developing countries: Material choice, development, installation and experiences (link – not free)

Leon Mishnaevsky Jr., Peter Freere, Rakesh Sinha, Parash Acharya, Rakesh Shrestha, Pushkar Manandhar (2011)

This paper summarizes the results of investigations on the mechanical testing and choice of timber for wind blades, testing of different coatings and blades as well as installation and practical experience with wooden wind turbines in Nepal. The recommendations on the optimal choice of Nepali timber and coatings for low cost wind blades are summarized. The timber wood blades were designed and tested. On the basis of the recommendations, the wind turbines with timber (lakuri) wind blades were produced, and tested. The turbines with timber wind blades were installed on several locations around Nepal, and their usability was studied. It was demonstrated that the appropriate choice of timber and coatings ensures necessary reliability of the blades and turbines.

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