EXPERIMENTAL ANALYSIS OF THE PERFORMANCE OF SAVONIUS VAWT WITH DIFFERENT NUMBERS OF BLADES ON ROOFS

Jeremi Francisco, . (2025) EXPERIMENTAL ANALYSIS OF THE PERFORMANCE OF SAVONIUS VAWT WITH DIFFERENT NUMBERS OF BLADES ON ROOFS. Indonesian Journal of Innovation Studies, 26 (4). pp. 1-7. ISSN 2598-9936

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Abstract

General Background: Renewable energy is increasingly vital for sustainable development, with wind energy offering significant potential in urban settings where land availability is limited. Specific Background: Vertical axis wind turbines (VAWTs), particularly Savonius types, are promising for rooftop applications but remain underexplored compared to horizontal axis turbines. Knowledge Gap: Limited studies have systematically examined how variations in blade number affect VAWT performance underlow wind speed conditions typical of urban environments. Aim: This study investigates the performance of Savonius VAWTs with 3, 4, and 6 blades to determine the optimal configuration for efficient energy generation on building roofs. Results: Experimental testing over 24 hours at an average wind speed of 2 m/s revealed that the 3-blade turbine achieved the best performance, with a tip speed ratio (0.94), coefficient of power (0.242), and voltage output (14.41V), outperforming the 4-blade and 6-blade designs. Novelty: This work demonstrates that reducing blade count can enhance efficiency in low-speed, rooftop urban wind applications, challenging the assumption that more blades inherently improve performance. Implications: The findings provide insights for optimizing small-scale renewable energy systems in urban areas, contributing to sustainable energy strategies and supporting national renewable energy targets.

Item Type: Article
Additional Information: [No. Panggil: 2110311051] [Pembimbing: Damora Rhakasywi] [Penguji 1: James Julian] [Penguji 2: Fitri Wahyuni]
Uncontrolled Keywords: Wind, Wind Turbine, Tip Speed Ratio, Energy, Green Energy
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Fakultas Teknik > Program Studi Teknik Mesin (S1)
Depositing User: JEREMI FRANCISCO
Date Deposited: 24 Feb 2026 02:17
Last Modified: 24 Feb 2026 02:17
URI: http://repository.upnvj.ac.id/id/eprint/40972

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