Performance of a Triple Cantilever Hybrid Energy Harvester (TCHEH) Based on the Triboelectric Surface Modification
M K Azwan1, H Salleh2, S Rao3

1M K Azwan*, Department of Mechanical Engineering, University Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang, Selangor, Malaysia.
2H Salleh, Institute of Sustainable Energy, University Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang, Selangor, Malaysia.
3S Rao, Institute of Sustainable Energy, University Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang, Selangor, Malaysia.
Manuscript received on September 11, 2019. | Revised Manuscript received on September 22, 2019. | Manuscript published on October 30, 2019. | PP: 3465-3469 | Volume-9 Issue-1, October 2019 | Retrieval Number: A2662109119/2019©BEIESP | DOI: 10.35940/ijeat.A2662.109119
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: The aim of this study is to characterise the performance of a Triple Cantilever Hybrid Energy Harvester (TCHEH) based on the triboelectric surface modification. The application is to harvest sufficient amount of power for low power sensor node. The whole system comprises of three separated generators being put together into one prototype with the design of triple cantilever beam. The triple cantilever consists of top and bottom triboelectric energy harvester (TEH) and middle section piezoelectric energy harvester (PEH). The top and bottom section is the Polytetrafluoroethylene (PTFE). The testing for TEH consists of pairing the highest negative charged material which is Polytetrafluoroethylene (PTFE) with few other positively charged materials. The best pair was used for further testing by modifying the triboelectricsurface in order to increase the power output. At the frequency of 13Hz and acceleration at 0.27gms-2 , the ideal opened-circuit voltage, VOC produced for top TEH was 2.23V and for the bottom TEH was 2.24V, while for the PEH was 9.27V. The final prototype of TCHE Hproduced an optimum power of 7.29mW at a resistance of 9kΩ. The power density obtained from the prototype was7.36Wm-2 which enable the low power sensor node to power up.
Keywords: Piezoelectric, Triboelectric, Electrochemical, Generator, Hybrid, Cantilever, Contact Mode, Surface Modification, Energy Harvester.