Horizontal-axis tidal turbine design based on 3D hydrodynamics

  • Zohreh Sarichloo CNR
  • Pedram Ghorbanpour CNR
  • Francesco Salvatore CNR
Keywords: Marine renewable energy, tidal turbines, design, hydrodynamics, boundary integral equation model, annual energy production

Abstract

A computational procedure for the hydrodynamic
analysis and design of horizontal-axis tidal turbines
is presented and numerical applications are discussed. The
methodology combines an original design algorithm and a
turbine hydrodynamics model valid for arbitrary 3D flows.
Different from standard design methods based on blade
element models, 3D-flow corrections are not necessary.
Blade geometry parameters are determined with the objective
to maximize power at given design Tip Speed Ratio
(TSR), whereas a constraint is introduced in order to limit
turbine thrust at TSR higher than the design condition.
Numerical applications include the design of a laboratoryscale
turbine and a full-scale turbine for the exploitation
of tidal streams in the Messina strait. Alternative design
solutions obtained by varying the design TSR are compared
in terms of energy output as well as mechanical loads
transferred to the powertrain.

Author Biographies

Zohreh Sarichloo, CNR

Research associate at CNR-INM, the Institute of Marine Engineering of the National Research Council of Italy 

Pedram Ghorbanpour, CNR

Research associate at CNR-INM, the Institute of Marine Engineering of the National Research Council of Italy

Published
2022-06-15
How to Cite
Sarichloo, Z., Ghorbanpour, P., & Salvatore, F. (2022). Horizontal-axis tidal turbine design based on 3D hydrodynamics. International Marine Energy Journal, 5(1), 77-90. https://doi.org/10.36688/imej.5.77-90
Section
EWTEC 2021 Special issue papers (Part 1)