Design, Build and Testing of a Noise-Free Twin Shaft Co-Axial Wind Turbine for UTS Buildings

Abstract:

Management and control of noise pollution in wind turbines are important to integrate wind turbines in building and urban areas. A scaled model of a horizontal-co-axial wind turbine was designed, built and tested in the wind tunnel of University of Technology Sydney (UTS) and its characteristics and aerodynamic-noise emissions were analyzed. The noise reduction capability of the horizontal-twin-shaft wind turbines was compared with wind turbines with the conical entry nozzle (stator), duct-shroud-envelop and vertical shafts. Air velocity, shaft rpm, electric-power generation, noise frequency and amplitude were measured. It was found that up to 15% reduction in the amplitude (dB) of noise emisit from twin shaft wind turbine compared to the single shaft bench mark turbine. The noise analysis performed as a result of these experiments may be used in the design and selection of a building integrated horizontal axis wind turbine for applications at UTS buildings.

• Periodical: Advanced Materials Research (Volumes 452-453)
• Pages: 1089-1093
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.452-453.1089
• Online since: January 2012
• Authors: Jafar Madadnia, Deepak Kala, Dheerej Pillai, Homa Koosha
• Keywords: Design Investigation, Experimental Investigation, Noise Reduction, Wind Energy

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