Determination of thrust force in propellers of a debris stirrer

• Autor(a) principal: Antonietti, Anderson José
• Data de Publicação: 2019
• Outros Autores: Rezler, Erik
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista de Engenharia e Pesquisa Aplicada
• Texto Completo: http://revistas.poli.br/index.php/repa/article/view/1200

This work has the objective of determining the propeller thrust force of a debris stirrer. The debris stirrer plays a key role in biogas generation because it is responsible for preventing carbon dioxide (CO2), produced in biodigestion, from forming stationary bubbles in the affluent and eventually hampering the action of bacteria, which slows down the process. In terms of values, the greater the thrust force created by the propeller, the greater the mixing of the residues and, consequently, the greater the biogas production. In order to obtain the thrust force of the propellers, computational simulation is used, where the geometry is implemented, the boundary conditions are defined, the computational mesh is generated and the analysis is performed. According to the results obtained, the propeller with the highest angle of attack of the blades presents a thrust force 32% higher in comparison with the other propeller, being the most indicated for the application in the biodigestor tank.