A research article entitled “The wind-driven Scotch yoke-based triboelectrik system for energy harvesting” by Orkhan Gulakhmedov, Jisok Kim and Mustafa Muradov, Leading Researchers at the Nano-Research Laboratory of the Center for Research, Development and Innovation of Baku State University (BSU) was published by “International Journal of Energy Research”. Impact Factor is 5.164.
In this study, the wind-driven Scotch yoke-based TENG (WSTENG) system was introduced to harness wind power. The WSTENG system consisted of propeller blades, the Scotch yoke, and multiple TENG pairs. The Scotch yoke converted the rotational motion of propeller blades into the linear reciprocating motion so that the WSTENG system enabled TENG pairs to operate in the contact-and-separation (CS) mode with a strong compressing force by the wind. Multiple TENG pairs showed a linear increase in electrical outputs with an increase in the number of TENG pairs. The short circuit current increased with the wind speed, which linearly corresponded to the CS frequency of TENG pairs. Interestingly, the open-circuit voltage also increased with the CS frequency. This was because the compressing force to TENG pairs in the WSTENG system increases due to the increase in the rotational energy of propeller blades by the increased wind speed. Reduction in the CS gap distance also effectively increased electrical outputs by increasing the compressing force. In this study, the WSTENG system generated 60 V of the open-circuit voltage and 7 μA of the short circuit current, respectively. And the system could light 37 light-emitting diodes and charged a 10-μF capacitor in the natural wind condition.
Read more: https://doi.org/10.1002/er.7900