On the limits of the Betz’s efficiency coefficient of wind turbines with the horizontally shaft

Autor/autori: Prof.dr. ing. Petre Terzi

Rezumat: Pornindu-se de la modelarea curgerii prin elementele rotorului de turbina eoliana cu arbore orizontal, prin aplicarea conceptului de curgere turbulrbulenta neintubata, pe baza publicatiilor lui Betz si Sabinin, se prezinta un nou concept teoretic privind limitele coeficientului de utilizare a energiei vantului incident pe sectiunea activa a rotorului turbinei eoliene cu arbore orizontal cu luarea in considerare a vitezelor induse in amonte si in aval de rotor.

Cuvinte cheie: aerodinamica, turbine de vant, rotor eolian cu arbore orizontal

Abstract: Beginning with the flowing modeling by means of the moving components of the horizontal shaft wind turbines applying the turbulent flow theoretical concept and considering the papers published by Betz and Sabinin, there are new theoretical concepts presented regarding the limits of incident current energy utilization factor on the horizontal shaft wind turbines, by considering the effect of upstream and downstream flow velocities induced by the wind turbine rotor.

Keywords: aerodynamics, wind turbine, horizontal shaft wind rotor

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