TY - JOUR
TI - Multi-objective optimization of a banki hydrokinetic turbine for deep-sea power supply: Experimental and numerical investigation
AU - Zhang, D
AU - Guo, P
AU - Wang, H
AU - Hu, Q
AU - Li, J
AU - Shams, A
T2 - Journal of Cleaner Production
AB - The advancement of deep-sea exploration equipment, with extended operational range and duration, necessitates the development of hydrokinetic turbines capable of efficiently harnessing low-speed current energy in deepwater environments. In response, we propose a novel Banki hydrokinetic turbine with superior self-starting capabilities. Nevertheless, knowledge gaps persist regarding the hydrodynamic mechanisms governing Banki hydrokinetic turbines. Furthermore, prototypes exhibit considerable potential for performance enhancement. Employing a parametric investigation, supported by a validated numerical model, this study elucidates the influence of critical geometric parameters on the turbine's performance. Building upon these findings, a synergistic approach involving the optimal Latin hypercube method, radial basis function neural network, and non-dominated sorting genetic algorithm is utilized for multi-objective optimization. Water flume experiments confirm that the optimized Banki hydrokinetic turbine can achieve a static torque coefficient surpassing 0.7, a magnitude exceeding tenfold that of lift-type horizontal axis hydrokinetic turbines. Remarkably, the optimized Banki hydrokinetic turbines exhibit the ability to self-initiate rotation at a current velocity as low as 0.2 m/s when configured with a turbine radius of 200 mm. This study reveals the precise geometric configuration of the optimized Banki hydrokinetic turbine, serving as a reference for the practical deployment of in-situ power generation systems capitalizing on this turbine technology.
DA - 2024/02//
PY - 2024
VL - 441
SP - 140953
UR - https://www.sciencedirect.com/science/article/pii/S0959652624004001
DO - 10.1016/j.jclepro.2024.140953
LA - English
KW - Current
KW - Cross Flow Turbine
KW - Ocean Current
KW - Lab Data
KW - Modeling
KW - Hydrodynamics
KW - Performance
ER -