Enhancement of Vibration Energy Harvesting Performance by Omni-Directional INVELOX Wind Funnel: A Computational Study

An alternate renewable energy source, through a piezoelectric vibration harvester with bluff splitter body, could lead to higher efficiency in harvesting, vortex-induced at near-resonance condition 20 m/s high wind speed. However, is not as popular solar energy, the main source Malaysia, due relatively low speed available country. The INVELOX machine, introduced 2014, was one of most recent systems used harvest power by accelerating This omni-directional funnel capture from all directions and tunnel it convergent-divergent nozzle, where coupled body (PVEH) are located its venturi throat, which an increase fulfil task VIV harvesting. proposed modified design found achieve 2.7 times amplification venturi, outperformed previously designs. To optimum for PVEH plate, free-stream 7.4 recommended. integration plate expected maximum voltage output 20.99 V or 4.96 V, 0.82mW m/s.