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ABSTRACT
Hydrokinetic turbines experience a harsh hydrodynamic environment with complex vortical flows which increase failure probability. The selection of turbine blade material is extremely critical to maintain its performance, reduce maintenance costs and prevent significant down time. The trade-off between material strength and cost is an important factor that needs to be considered for a hydrokinetic turbine. This article gives a brief overview in existing solution for the materials used for hydrokinetic turbine blades discussing the advantages and disadvantages of various materials in terms of relative performance and life-cycle assessment. This overview can provide a fundamental criterion to researcher and policy makers for selection of materials used in hydrokinetic turbine application.
Nomenclature
| 3D | = | Three Dimensional |
| A | = | Cross Sectional Area of Turbine Blade |
| BEM | = | Blade Element Momentum |
| Cp | = | Power Coefficient |
| Ct | = | Torque Coefficient |
| Ct_static | = | Static Torque Coefficient |
| Ct_dynamic | = | Dynamic Torque Coefficient |
| CO2 | = | Carbon Dioxide |
| D | = | Diameter of Blade |
| EIA | = | United States Energy Information Management |
| FEM | = | Finite Element Method |
| FSI | = | Fluid Structure Interaction |
| H | = | Height of Blade |
| IRENA | = | International Renewables Agency |
| LCA | = | Life Cycle Assessment |
| Pfluid | = | Available Power in Fluid Flow |
| PU | = | Polyurethanes |
| PV | = | Photovoltaic |
| T | = | Dynamic Torque |
| Tstatic | = | Static Torque |
| TSR | = | Tip Speed Ratio |
| V | = | Free Stream Velocity |
| WoS | = | Web of Science |
| ρ | = | Density |
| ω | = | Angular speed of Blade |
| λ | = | Tip Speed Ratio |
Acknowledgements
This work was supported by the Ministry of Higher Education (MoHE) Malaysia for Fundamental Research Grant Scheme with Project Code: FRGS/1/2019/TK07/USM/02/3, and the School of Aerospace Engineering postdoctoral fellowship Universiti Sains Malaysia. The authors thank members of the CFD Group for their insights, recommendations, and contribution on the performance of this project.
CRediT author statement
Muhamad Hasfanizam Mat Yazik: Conceptualization, Formal Analysis, Methodology, Writing – original draft
Disclosure statement
The authors declare that they have no known competing financial interests or personal relationships to declare that could have appeared to influence the work reported in this paper.