Aerodynamic Performance Analysis of a Building-Integrated Savonius Turbine

Zhaoyong Mao, Guangyong Yang, Tianqi Zhang and Wenlong Tian
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Zhaoyong Mao: School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
Guangyong Yang: School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
Tianqi Zhang: School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
Wenlong Tian: School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China

Energies, 2020, vol. 13, issue 10, 1-21

Abstract: The building-integrated wind turbine is a new technology for the utilization of wind energy in cities. Previous studies mainly focused on the wind turbines mounted on the roofs of buildings. This paper discusses the performance of Savonius wind turbines which are mounted on the edges of a high-rise building. A transient CFD method is used to investigate the performance of the turbine and the interaction flows between the turbine and the building. The influence of three main parameters, including the turbine gap, wind angle, and adjacent turbines, are considered. The variations of the turbine torque and power under different operating conditions are evaluated and explained in depth. It is found that the edge-mounted Savonius turbine has a higher coefficient of power than that operating in uniform flows; the average C p of the turbine under 360-degree wind angles is 92.5% higher than the turbine operating in uniform flows. It is also found that the flow around the building has a great impact on turbine performance, especially when the turbine is located downwind of the building.

Keywords: Savonius; wind turbine; building; CFD; performance (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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