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Publikācija: New Devices for Energy Extraction from Air Flow

Publication Type Full-text conference paper published in conference proceedings indexed in SCOPUS or WOS database
Funding for basic activity Unknown
Defending: ,
Publication language English (en)
Title in original language New Devices for Energy Extraction from Air Flow
Field of research 2. Engineering and technology
Sub-field of research 2.3 Mechanical engineering
Authors Jānis Vība
Staņislavs Noskovs
Vitālijs Beresņevičs
Jānis Dobelis
Keywords air flow, rotor, blade, aerodynamic simulation, experiments
Abstract New devices for energy extraction from air flow are developed. Device consists of central rotor and several plane blades, which are fastened to the rotor with the ability to change the orientation of their working surfaces relative to the direction of incoming wind flow. Each blade is fastened to the rotor with a cylindrical axial hinge, which longitudinal axis is parallel to the rotor’s longitudinal axis. Axles of blades have kinematic connection with the central rotor; therefore blades rotate as the central rotor rotates about its axis. It is considered that axis of the rotor is perpendicular to air flow and simultaneously has arbitrary angle against the horizon. Theoretical and experimental analysis of blade’s interaction with air flow is performed. Aerodynamic coefficients for blade’s drag and lifting forces are determined experimentally in wind tunnel ARMFIELD. Optimization of system parameters is made using programs Excel and MathCad. It is shown that optimal angular rotation frequency ratio between rotor and any blade is equal to 2. Physical model of wind turbine with four blades is made. Experiments with physical model confirm a serviceability of the device and its main advantages in energy extraction from air flow. The proposed method for energy extraction from air flow is patented in Latvia in 2015.
Hyperlink: http://www.tf.llu.lv/conference/proceedings2016/Papers/N131.pdf 
Reference Vība, J., Noskovs, S., Beresņevičs, V., Dobelis, J. New Devices for Energy Extraction from Air Flow. In: 15th International Scientific Conference "Engineering for Rural Development": Proceedings. Vol.15, Latvia, Jelgava, 25-27 May, 2016. Jelgava: Latvia University of Agriculture, 2016, pp.714-719. ISSN 1691-5976.
Additional information Citation count:
  • Scopus  -1
ID 22368