论文标题
一种新型的涡流辅助生成系统,用于从慢速水流中收集的基本能量
A novel vortex-assisted generation system for hydrokinetic energy harvesting from slow water currents
论文作者
论文摘要
已经开发了一种新的系统,该系统利用了从缓慢的电流(<0.5 m/s)水产生可再生的水力学能量的涡流引起的振动现象(VIV)。它利用单个自由度的旋转圆柱机制,以及电磁诱导发生器。由于观察和概念开发,最终原型包括振荡器上游的固定圆柱棚。在整个报告中,该系统被称为“ Vortex Assisted Generation”(V.A.G.)。鉴于系统的新颖性,已经进行了广泛的研究,以识别系统变量之间对它们对输出电压,频率和功率的影响之间的关键参数和功能关系。已经建立了一系列的流速度,以启动系统锁定,其中气缸以高振幅和频率振荡。对于测试的原型,在实验室条件下已实现了最多37%的系统提取效率。
A novel system has been developed that harnesses the phenomena of vortex-induced vibrations (VIV) from a slow current (<0.5 m/s) of water to generate renewable hydrokinetic energy. It utilizes a single degree-of-freedom pivoting cylinder mechanism coupled with an electromagnetic induction generator. As a result of observation and concept development, the final prototype includes a stationary cylindrical shedder upstream of the oscillator. The system is referred to as "Vortex Assisted Generation" (V.A.G.) throughout the report. Given the novelty of the system, an extensive investigation has been conducted to identify key parameters and functional relationships between system variables, regarding their effect on output voltage, frequency, and power. A range of flow velocities have been established that instigate system lock-in, where the cylinder oscillates at high amplitude and frequency. For the tested prototype up to 37% of system extraction efficiency has been achieved in the lab conditions.