Scientific Research Publishing

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52854#.VKs-ecnQrzE Author(s)    Soichi Sasaki , Ryo Sakada , Kota Suzuki Affiliation(s) Graduate School of Engineering, Nagasaki University, Nagasaki, Japan . ABSTRACT To discuss the relationship between the periodicity noise and the aerodynamic noise source of a wind turbine, the characteristics of the actual wind turbine were measured by a wind tunnel; moreover, the flow around the impeller immersed in the uniform flow was solved by numerical simulation. In the observed wind turbine, when the mainstream velocity was 7.4 m/s or more, the power coefficient reached maximum at tip speed ratio 8. When the mainstream veloci...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50351#.VDsk_lfHRK0 Author(s)   Oleksandr Mokin , Borys Mokin , Vadym Bazalytskyy Affiliation(s) Department of Renewable Energy and Transport Electrical Systems and Complexes, Vinnytsia National Technical University, Vinnytsia, Ukraine . ABSTRACT The measuring system for estimation of power of wind flow generated by the train movement has been created. The advantages of the proposed system are the cheapness and simple design. With its simplicity of design and easy build-up of channels, designed measuring system can be used for a wide range of technical problems. This paper describes the design process, validation and conducting the first field test of this m...