Lee Won-Ho, Lee Se-Hee, Lee Sangyoup, Lee Jong-Chul
School of Mechanical and Automotive Engineering, Gangneung-Wonju National University, Wonju 26403, Korea.
Department of Electrical Engineering, Kyungpook National University, Daegu 41566, Korea.
J Nanosci Nanotechnol. 2018 Sep 1;18(9):6410-6414. doi: 10.1166/jnn.2018.15687.
Nanoparticles and nanofluids have been implemented in energy harvesting devices, and energy harvesting based on magnetic nanofluid flow was recently achieved by using a layer-built magnet and micro-bubble injection to induce a voltage on the order of 10-1 mV. However, this is not yet suitable for some commercial purpose. In order to further increase the amount of electric voltage and current from this energy harvesting the air bubbles must be segmented in the base fluid, and the magnetic flux of the segmented flow should be materially altered over time. The focus of this research is on the development of a segmented ferrofluid flow linear generator that would scavenge electrical power from waste heat. Experiments were conducted to obtain the induced voltage, which was generated by moving a ferrofluid-filled capsule inside a multi-turn coil. Computations were then performed to explain the fundamental physical basis of the motion of the segmented flow of the ferrofluids and the air-layers.
纳米颗粒和纳米流体已应用于能量收集装置中，最近通过使用层叠磁体和微气泡注入来诱导产生10 - 1毫伏量级的电压，实现了基于磁性纳米流体流动的能量收集。然而，这尚未适用于某些商业用途。为了进一步提高这种能量收集产生的电压和电流，必须在基液中对气泡进行分割，并且分割流的磁通量应随时间发生实质性变化。本研究的重点是开发一种分段铁磁流体流动线性发电机，该发电机可从废热中获取电能。进行了实验以获得感应电压，该电压是通过在多匝线圈内移动装满铁磁流体的胶囊产生的。然后进行了计算，以解释铁磁流体和空气层分段流动运动的基本物理基础。
