A miniature hydro-energy generator based on pressure fluctuation in Kármán vortex street
Source abstract
Abstract
A new miniature hydro-energy generator for harnessing energy from Kármán vortex street behind a bluff body in a water flow is developed. The flow energy is converted into electrical energy by an assembly of a cantilevered piezoelectric beam and a flexible diaphragm. An analytical model for the energy harvester is developed. Prototypes of the energy generator are fabricated and tested. Experimental results show that an open-circuit output voltage of 120 mVpp and an instantaneous output power of 0.7 nW are generated when the pressure oscillates with an amplitude of nearly 0.3 kPa and a frequency of about 52 Hz.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Innovative Energy Harvesting Technologies · Energy Harvesting in Wireless Networks · Advanced Sensor and Energy Harvesting Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Graduate Institute of Precision Engineering, National Chung Hsing University, Taichung, Taiwan
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