Preprints
https://doi.org/10.5194/wes-2022-22
https://doi.org/10.5194/wes-2022-22
 
04 May 2022
04 May 2022
Status: this preprint was under review for the journal WES but the revision was not accepted.

A New Way to Estimate Maximum Power from Wind Turbines: Linking Newtonian with Action Mechanics

Ivan Kennedy1,3, Migdat Hodzic2, Angus Crossan3, Nikolas Crossan3, Niranjan Acharige1, and John Runcie1 Ivan Kennedy et al.
  • 1School of Life and Environmental Sciences, Institute of Agriculture, University of Sydney, NSW 2006, Australia
  • 2Faculty of Information Technologies, The Dzemal Bijedic University of Mostar, Mostar 880000 Bosnia and Herzegovina
  • 3Quick Test Technologies, c/- Institute of Agriculture, University of Sydney, NSW 2006, Australia

Abstract. A more accurate way to calculate power output from wind turbines based on fundamental Newtonian mechanics is proposed for testing. This contrasts with current methods regarded as governed by flows of kinetic energy through an area swept by rotating airfoils. Action mechanics measures torques caused by conservation of momentum of impulsive air streams on rotor surfaces at differing radii. We integrate the windward torque using inputs of rotor dimensions, the angle of incidence and strength of wind impulses on the blade surfaces. A reverse torque in the plane of rotation is estimated as radial impulses from the blade’s rotation. Net torque is converted to power by the angular velocity of the turbine rotors. A matter of concern is significant heat production by wind turbines, partly from leeward reactions but mainly from turbulent release of vortical energy. Use of wind farms as sources of renewable energy may need better practice, minimizing environmental impacts guided by this hypothesis.

Ivan Kennedy et al.

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on wes-2022-22', Anonymous Referee #1, 11 May 2022
    • AC1: 'Reply on RC1', Ivan Kennedy, 13 May 2022
  • AC2: 'Comment on wes-2022-22', Ivan Kennedy, 21 Jun 2022
  • RC2: 'Comment on wes-2022-22', Anonymous Referee #2, 15 Jul 2022

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on wes-2022-22', Anonymous Referee #1, 11 May 2022
    • AC1: 'Reply on RC1', Ivan Kennedy, 13 May 2022
  • AC2: 'Comment on wes-2022-22', Ivan Kennedy, 21 Jun 2022
  • RC2: 'Comment on wes-2022-22', Anonymous Referee #2, 15 Jul 2022

Ivan Kennedy et al.

Ivan Kennedy et al.

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Short summary
A more accurate way to calculate power output from wind turbines based on fundamental Newtonian mechanics is proposed for testing. We integrate windward and reverse torques using inputs of rotor dimensions, the angle of incidence and strength of wind impulses on the blade surfaces. Of environmental concern is a prediction of significant heat production by wind turbines.