Abstract In the present research, the performance of a prototype tidal turbine is evaluated via towing tank tests. The examined model is a three-bladed horizontal axis with a 1.15 m diameter. Previously, we studied the hydrodynamic behavior of this turbine and calculated the hydrodynamic coefficients using a numerical approach. Thus, this work concentrates on overwhelming the challenges, from manufacturing and assembling to data acquisition and power storage. The turbine is tested under various conditions namely: pitch angle, electrical load, carriage speed, and immersion depth to improve efficiency. Our experiment indicated the turbine performance to be the best being close to the surface of the water at different flow speeds. The optimum electrical load was found to be 20 Ω adding 16–40% to efficiency. By fixing the optimum load and tip immersion depth, the maximum efficiency of the whole rotor achieved around 0.265 at less than 0.56 m/s as towing speed while at the speed of 1.1 m/s, the maximum output power was more than 120 W having the pitch of the blades fixed at 20.4°.

中文翻译：

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通过拖曳水槽试验对 100 W 原型水平轴潮汐涡轮机进行实验评估

摘要 在目前的研究中，原型潮汐涡轮机的性能是通过拖曳水槽试验来评估的。检查的模型是一个直径为 1.15 m 的三叶水平轴。之前，我们研究了该涡轮机的水动力特性，并使用数值方法计算了水动力系数。因此，这项工作的重点是克服从制造和组装到数据采集和电力存储的挑战。涡轮机在各种条件下进行测试，即：俯仰角、电气负载、滑架速度和浸入深度，以提高效率。我们的实验表明，在不同流速下，靠近水面的涡轮机性能最好。发现最佳电气负载为 20 Ω，效率增加 16-40%。