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Multi-layered disk triboelectric nanogenerator for harvesting hydropower.
- Source :
- Nano Energy; May2014, Vol. 6, p129-136, 8p
- Publication Year :
- 2014
-
Abstract
- Abstract: New technologies that can scavenge ambient environmental energy have attracted increasing interest in the past decades. Recently, triboelectric nanogenerator (TENG) has been demonstrated as a powerful approach for harvesting various forms of mechanical energies. In this work, a newly designed TENG is demonstrated by coaxially integrating multiple layers disk TENGs into a whole system, which transforms the fluid flow into rotation motion of multiple layers disks and generates a multiplied electrical output. To achieve the effective structural integration and output multiplication, a D-shape shaft is adopted to facilitate the synchronized relative rotation of all the segmentally-structured disk layers and light weight and low stiffness springs are employed to ensure the intimate contact of the tribo-surfaces. With the above design, the nanogenerator delivers an open-circuit voltage up to ~470V and a short-circuit current density of 90.6mA/m<superscript>2</superscript>, corresponding to an instantaneous maximum power density of 42.6W/m<superscript>2</superscript> (2.68kW/m<superscript>3</superscript>) at a rotation speed of 1000rpm. By combining the TENG with a water turbine, the device can be effectively driven by a water flow from a common household faucet. This technology represents an important advance of TENGs toward practical applications and shows great potential in hydroelectric power and wind power industries. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 22112855
- Volume :
- 6
- Database :
- Supplemental Index
- Journal :
- Nano Energy
- Publication Type :
- Academic Journal
- Accession number :
- 96450288
- Full Text :
- https://doi.org/10.1016/j.nanoen.2014.03.015