Autors: Pushkarov, M. I., Simova, I. S., Velichkova, R. T., Ivanova V., Alexandrov, A. S.
Title: Experimental Investigation of Air Turbine for Utilization of Wave Energy †
Keywords: air turbine, renewable energy, wave energy, Wells-type turbine

Abstract: Working toward replacing conventional fossil fuels with alternative renewable energy, offshore renewable energy technologies give promising solutions, even though each of the types (wind, wave, tidal and thermal) is at a different stage of development and with its own unique challenges and opportunities. This paper is focused on sea wind wave energy harvesting through a hybrid system that combines both a water turbine with oscillating blades and “Wells”-type air turbine. A test bench was designed and tested at different flow rates to study the performance of the hybrid system and more precisely the “Wells”-type turbine. Experimental studies of the main parameters of a turbine were conducted, which demonstrated the efficiency of the turbine and its good practical application. The experimental results show good agreement with the preliminary performed numerical simulations, as well as with the published data.

References

  1. United Nations, for a Livable Climate: Net-Zero Commitments Must Be Backed by Credible Action Available online: https://www.un.org/en/climatechange/net-zero-coalition (accessed on 4 April 2024)
  2. United Nations, The Paris Agreements Available online: https://www.un.org/en/climatechange/paris-agreement (accessed on 4 April 2024)
  3. Stanilov A. Ivanov M. Bekriev O. Experimental study of a pump in turbine mode, energy characteristics, selection methods and operation in a system IOP Conf. Ser. Earth Environ. Sci. 2023 1234 012008 10.1088/1755-1315/1234/1/012008
  4. Bekriev O. Stanilov A. Experimental study of the accuracy of measuring of a central water meter E3S Web Conf. 2021 327 04004 10.1051/e3sconf/202132704004
  5. Delmonte N. Barater D. Giuliani F. Cova P. Review of oscillating water column converters IEEE Trans. Ind. Appl. 2016 52 1698 1710 10.1109/TIA.2015.2490629
  6. Gato L.M.C. Falcao A.F.d.O. On the theory of the Wells turbine J. Eng. Gas Turbines Power. 1984 106 628 633 10.1115/1.3239616
  7. Paderi M. Puddu P. Experimental investigation in a Wells turbine under bi-directional flow Renew Energy 2013 57 570 576 10.1016/j.renene.2013.02.016
  8. Okuhara S. Takao M. Takami A. Setoguchi T. Wells Turbine for Wave Energy Conversion—Improvement of the Performance by Means of Impulse Turbine for Bi-Directional Flow Open J. Fluid Dyn. 2013 3 36 41 10.4236/ojfd.2013.32A006
  9. Sharif E.F. Mahmoud A.P.D.M.S. Investigate air turbines performance for power generation by tidal waves in the river: A review Al-Salam J. Eng. Technol. 2023 2 182 190 10.55145/ajest.2023.02.02.021
  10. Falcão A.F.O. Henriques J.C.C. Gato L.M.C. Gomes R.P.F. Air turbine choice and optimization for floating oscillating-water-column wave energy converter Ocean Eng. 2014 75 148 156 10.1016/j.oceaneng.2013.10.019
  11. Cui Y. Hyun B.-S. Numerical study on Wells turbine with penetrating blade tip treatments for wave energy conversion Int. J. Nav. Archit. Ocean. Eng. 2016 8 456 465 10.1016/j.ijnaoe.2016.05.009

Issue

Engineering Proceedings, vol. 70, 2024, , https://doi.org/10.3390/engproc2024070047

Вид: статия в списание, публикация в издание с импакт фактор, публикация в реферирано издание, индексирана в Scopus