Scholarlink

<p>This paper proposes an airflow energy harvester based on dual-pull diamagnetic levitation with a center-symmetric rotor, aiming to investigate its levitation stability and energy harvesting efficiency. Simulation calculations were performed to analyze how the coil’s and symmetrical rotor’s structural parameters affect the harvester’s levitation and output characteristics, thereby determining the coils’ appropriate layout and structural parameter. Subsequently, the influence of the thickness and notch radius of the symmetrical rotor on the levitation characteristics and output performance of the airflow energy harvester was analyzed by experiment. Simulation and experimental results indicate that a 4-mm-thick symmetrical rotor with a 2.5-mm notch radius is identified as the most suitable choice in the study. When left and right nozzles maintain an airflow rate of 3000 sccm, the stable rotational speed of the symmetrical rotor is 25,827&#xa0;rpm, the peak output voltage of the airflow energy harvester is 3.206&#xa0;V, and the power of the airflow energy harvester is 383.52 mW. The optimal external load for this airflow energy harvester is 13.4 Ω. With the load circuit connected, the total power of the airflow energy harvester is 191.76 mW, and the maximum power of the external load circuit is 95.88 mW. In practical application experiment, 60 LED lights were successfully illuminated, verifying the feasibility of the airflow energy harvester.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Analysis of airflow energy harvester based on dual-pull diamagnetic levitation with center-symmetric rotor

  • 期刊论文

  • 发表日期：

    2025年8月21日

查看全文
  • Bingbing Wang,
  • Zhiyong Pang,
  • Xia Li,
  • Long Zhang,
  • Kean C. Aw,
  • Yufeng Su

摘要

This paper proposes an airflow energy harvester based on dual-pull diamagnetic levitation with a center-symmetric rotor, aiming to investigate its levitation stability and energy harvesting efficiency. Simulation calculations were performed to analyze how the coil’s and symmetrical rotor’s structural parameters affect the harvester’s levitation and output characteristics, thereby determining the coils’ appropriate layout and structural parameter. Subsequently, the influence of the thickness and notch radius of the symmetrical rotor on the levitation characteristics and output performance of the airflow energy harvester was analyzed by experiment. Simulation and experimental results indicate that a 4-mm-thick symmetrical rotor with a 2.5-mm notch radius is identified as the most suitable choice in the study. When left and right nozzles maintain an airflow rate of 3000 sccm, the stable rotational speed of the symmetrical rotor is 25,827 rpm, the peak output voltage of the airflow energy harvester is 3.206 V, and the power of the airflow energy harvester is 383.52 mW. The optimal external load for this airflow energy harvester is 13.4 Ω. With the load circuit connected, the total power of the airflow energy harvester is 191.76 mW, and the maximum power of the external load circuit is 95.88 mW. In practical application experiment, 60 LED lights were successfully illuminated, verifying the feasibility of the airflow energy harvester.