Multi-Tunnel Triboelectric Nanogenerator for Scavenging Mechanical Energy in Marine Floating Bodies

Journal Article

Title: Multi-Tunnel Triboelectric Nanogenerator for Scavenging Mechanical Energy in Marine Floating Bodies

Author:

Zhang, Z.; Hu, Z.; Wang, Y.; Wang, Y.; Zhang, Q.; Liu, D.; Wang, H.; Xu, M.

Publication Date:

April 1, 2022

Journal:

Journal of Marine Science and Engineering

Volume:

Issue:

Pages:

Publisher:

MDPI

Affiliation:

Dalian Maritime University, Shanghai Jiao Tong University, National University of Singapore

Technology:

Wave

Collection Method:

Lab Data, Modeling

Engineering:

Performance, Structural

Economics:

Alternative Markets

Document Access

Website:

External Link

Attachment:

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Citation

Zhang, Z.; Hu, Z.; Wang, Y.; Wang, Y.; Zhang, Q.; Liu, D.; Wang, H.; Xu, M. (2022). Multi-Tunnel Triboelectric Nanogenerator for Scavenging Mechanical Energy in Marine Floating Bodies. Journal of Marine Science and Engineering, 10(4), 12. https://doi.org/10.3390/jmse10040455

Abstract

The ocean has an abundant reserve of wave energy, which is considered to be a clean, widely distributed and inexhaustible resource. Triboelectric nanogenerators (TENGs) have been regarded as a reliable technology for harvesting wave energy due to its robustness and efficiency in scavenging random mechanical energy. In this study, a wave energy harvesting multi-tunnel TENG (MT-TENG) has been proposed, which could be integrated easily with ocean buoys. The MT-TENG consists of polytetrafluoroethylene (PTFE) balls and a multi-tunnel frame, which could convert wave energy into electrical energy. The multi-tunnel design also avoids possible mutual obstruction of the PFTE balls during the movement. Compared with the flat type structure, the multi-tunnel structure could enhance output performance obviously. With an agitation frequency of 2 Hz and vibration amplitude of 130 mm, the MT-TENG has a peak power density of 8.3 W/m³, which is five times that of the flat type structure TENG. By integrating with a life buoy and floating pipe line, the MT-TENG could harvest wave energy to light LEDs continuously, which could provide a new solution for maritime rescue and night offshore oil delivery warning.