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International Journal of Basic Science and Technology

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Archive | ISSUE: , Volume: Jul-Sep-2024

Exploring the Impact of Building Roofs on Vertical Axis Wind Turbines


Author:Buhari et al., 2024

published date:2024-Oct-13

FULL TEXT in - | page 238 - 246

Abstract

Urban wind energy harvesting, a promising departure from the traditional approaches favoring open terrains and large wind power plants, is gaining public interest. Despite the challenges of urban areas, such as lower wind speeds and higher turbulence levels, this shift presents significant opportunities. Specific locations, such as zones around high-rise buildings, offer the potential for high wind speeds, highlighting the innovative and hopeful nature of urban wind energy. Turbines were incorporated in two types of building roofs (Gable and flat roofs) in the design. Also, turbine systems were fabricated using locally available materials and tested with different wind speeds by use of fans as blowers. The results show that the Gable roofed Vertical Axis Wind Turbine has achieved a maximum coefficient of power (Cp) value of 0.142 when compared with the maximum coefficient of power (Cp) of the flat Vertical Axis Wind Turbine at the same wind speeds and subjected to the same experimental conditions is 0.033 at a wind speed of 3 m/s, this indicates that the maximum Cp of the Gable roof Vertical Axis Wind Turbine has increased by 33.3% compared to the flat Vertical Axis Wind Turbine. Additionally, the Gable roof Vertical Axis Wind Turbine has achieved a maximum tip speed ratio value of 10.832 at a wind speed of 1 m/s, showcasing an 84% increase compared to the flat roof Vertical Axis Wind Turbine. Moreover, the Gable roof Vertical Axis Wind Turbine has reached a maximum mechanical power value of 0.172 at a tip speed ratio of 3.063, which is a 338.3% improvement compared to the flat Vertical Axis Wind Turbine on the prototype experiment. These results illustrate the potential and benefits of integrating wind turbines on building rooftops, such as the Gable roof Vertical Axis Wind Turbine, in enhancing urban wind energy studies

Keywords: Vertical Axis Wind Turbine Power Coefficient Tip Speed Ratio Gable Roof, Flat Roof,,,

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FULL TEXT in - | page 238 - 246

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