Navegando por Autor "Castro Filho, Francisco Assis de"

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Energia renovável: uma proposta do sistema eólica para comunidade ribeirinha
(2025-04-28) Castro Filho, Francisco Assis de; Cordeiro, Celso Souza; http://lattes.cnpq.br/4969144304480235; Ribeiro, Ewerton Andrey Godinho; http://lattes.cnpq.br/0187470129136467; Lima, Jonatas Micael Vieira de; http://lattes.cnpq.br/4866950717399057
Developed to democratize access to clean energy in isolated regions, the proposed wind system uses refurbished fan motors as sustainable generators, adapting common, lowcost components to serve as the core of a vertical-axis wind turbine. Designed for winds between 3 m/s and 8 m/s (typical of riverside areas), the structure employs blades made from recycled materials (such as discarded PVC) and a simplified transmission system, where the fan motor—modified to enhance magnetic induction—converts kinetic energy into electrical energy with up to 45% efficiency. Coupled with reused lead-acid batteries, the system stores up to 1.2 kWh, ensuring energy autonomy for 10 hours in the absence of wind—sufficient to power LED lighting, portable chargers, and small water pumps. Field tests under high humidity and sudden wind variations proved the prototype’s robustness, operating continuously for 72 hours without failure. Reusing the fan motor reduced costs by 40% (compared to commercial generators) and enabled training residents in practical workshops for assembly and repair, eliminating dependence on fossil fuels and reducing irregular disposal of electronics by 80%. Beyond enabling affordable energy, the initiative strengthens community management, integrating technical innovation, environmental sustainability, and social inclusion in historically neglected regions.