A NOTE ON EXTENDING DOMAIN FOR CHARACTERISTIC NUMBER IN THE CASE OF WIND TURBINES

• Main Authors: Dubău Călin, Cătaș Adriana
• Format: Article
• Language: English
• Published: Editura Universităţii din Oradea 2020-05-01
• Series: Natural Resources and Sustainable Development
• Subjects: characteristic number; operating curves; wind turbines
• Online Access: https://docs.google.com/viewerng/viewer?url=http://nrsdj.com/papers/2020-1/08.+Dubau+Calin+2020-10-1.pdf

Within the aeroelectric units, wind turbines represent the component that ensures the conversion of the kinetic energy of the wind, into mechanical energy that can be used in the turbine shaft. This is achieved by the interaction between the airflow and the rotor pallet. Within the parameters involved in the performance of the wind machine, an important role is played by a specific form of the characteristic function, namely the speed or rapidity. The paper aims to investigate the extension of the range of this characteristic number in order to increase turbine performance. It starts from a certain approximation for the desired curve and determines an extended domain for the characteristic number, using a mathematical model. The mathematical model is constructed based on characteristic curve and it is proposed for output power of the wind turbine. The present study highlights the importance of knowing certain parameters variation of wine turbine.