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Research Paper | Mechanical Engineering | Angola | Volume 12 Issue 5, May 2023
Experimental Contributions for the Study of the Technical Characteristics of a Prototype of Multibladed Wind Turbines for Mechanical Energy Generation for Water Pumping
Eduardo San Martin | Rogerio Apolinario | Mario Rosado | Daniel Barreira | Jose Manuel  | Akihito Esperanca | Vencislau Quissanga
Abstract: Given the importance of water and electricity in the different sectors of development of a nation and in the daily life of human beings, it is essential to develop investigations and/or studies related to the alternatives of micro-electric power stations to facilitate the process of supplying the precious liquid, especially in regions with notable shortages or even drought. In this context, in addition to water distribution for sustainability, it is important that supply systems are built in order to significantly reduce water losses and energy consumed by pumping equipment in the operating phase. Thus, the present research work aims to contribute with some experimental responses based on the technical characteristics of a prototype wind turbine of the multi-blade type. Therefore, as a case study, a hori-zontal axis wind turbine with a multi-blade rotor was developed / built, taking into account the high starting torque. In the study in question, three variations of the number of blades (three, nine, and eighteen) were adopted, with blades with a thickness of 1 mm, a di-ameter of 0.42 m, and a rotor of 1 m, to evaluate the power and efficiency of the turbine. Taking into account the variation in wind speed and the variation in the angle of attack. Therefore, the results were compared, and it was concluded that the most viable configuration is the case with 18 blades with an angle of attack of 45 degree. Therefore, these results were taken as a basis for the real design project of a pilot plant for pumping water in a farm located in the province of Bengo-Angola.
Keywords: Multi - bladed wind turbines, Horizontal Axis, Experimental prototype, Pilot plant, Water pumping
Edition: Volume 12 Issue 5, May 2023,
Pages: 1408 - 1417