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By: Manoj R A, Krishna M, and Srihari P V
1Student, Machine Design, R V College of Engineering, RV Vidyaniketan, Post, Bengaluru, Karnataka 560059, India
2 Research Scholar, Mechanical Engineering, R V College of Engineering. RV Vidyaniketan, Post, Bengaluru, Karnataka 560059, India
The Vertical Axis Darrieus Wind Turbine (VAWT) market is growing at 15% annually, valued at $2.1 billion, with rising demand for 10-30 kW models for residential use. This Paper focuses on designing and fabricating a compact, efficient, and low-maintenance VAWT optimized for urban applications and low wind speeds. Addressing gaps in blade design, adaptability, and cost, the turbine features helical blades modeled in SolidWorks for optimal geometry and performance.Polylactic acid (PLA) was selected for blade construction, balancing durability and lightweight properties. A gear system efficiently transferred mechanical energy to a 12V DC generator, supported by a robust frame ensuring structural stability. Field tests confirmed reliable performance under real-world conditions. At a wind speed of 8 m/s, theoretical power output was 1785.36 W, with a practical output of 530 W, achieving 30% efficiency—on par with Horizontal Axis Wind Turbines (HAWTs).The turbine’s twisted blade design enabled operation at minimal wind speeds, achieving a maximum coefficient of performance (C.O.P.) of 0.5926 and torque ranging from 0–0.2 N-m. Measurements of wind velocity, rotational speed, and power output demonstrated its suitability for residential applications, particularly in urban and low-height environments.
Citation:
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