Compact and high performance wind actuated venturi triboelectric energy harvester

Abstract

The growing need for alternative sources to power Internet of Things and autonomous devices has led to many energy harvesting solutions from ambient energy sources. Use of batteries requires complementary energy source for extending the lifetime of the device. In recent times, triboelectric nanogenerators have gained significant attention in charging applications through ambient energy harvesting field due to their simplicity, efficiency and adaptability to many device configurations in nature. It is deemed to sustainably address power for autonomous smart applications in various environmental conditions. In this work, a state-of-the-art triboelectric nanogenerator based on wind actuated venturi design system is demonstrated in sync with the smart system evolution for powering various sensor nodal network. Using natural wind, the 3D printed wind actuated venturi triboelectric energy harvester converts ambient mechanical energy into electricity. This simple and compact device produces an optimum average power of 1.5 mW and produces a maximum output power density of 2850 mW.m-2 (peak power output of 4.5 mW), which is much higher than the existing reports that use larger surface area at higher wind velocity. Extensive material testing and future implementation in an array of applications aids for environment friendly energy production and increase the role of triboelectric nanogenerator in autonomous applications.

An Ultra-Durable Windmill-Like Hybrid Nanogenerator for Steady and Efficient Harvesting of Low-Speed Wind Energy

“…TENG will undoubtedly provide a new power supply manner for intelligent, wearable, and implantable electronic products. To date, some wind energy harvesting TENGs with rotational structures [27][28][29][30] and flutter-driven structures were developed [31][32][33][34][35][36], and quite high outputs could be achieved under relatively high wind speeds which were usually higher than 5 m s −1 . However, the global average wind speed near the surface (the observation altitude is 10 meters) is reported to be 3.28 m s −1 [6,37].…”

Metal Island Structure as a Power Booster for High‐Performance Triboelectric Nanogenerators

“…A wide range resistance ladder method has been engaged with the external load varying from 10 to 376 MΩ. [ 25 ] As illustrated in Figure 3d in log scale graph format, a peak and an RMS power of 7.7 and 5.3 mW were reached at the 151 MΩ load, which is ≈150 times higher than the output power (54 µW/38 µW) of the structure with no metal inclusion (test sample B ). More information is presented in Figure S7 (Supporting Information).…”

Vibration‐based piezoelectric, electromagnetic, and hybrid energy harvesters for microsystems applications: A contributed review

“…This somehow limits the use of batteryoperated WSNs in embedded, deserted, hazardous, and remote locations. To extract energy from the ambient mechanical vibrations, vibration-based piezoelectric, 78 electromagnetic, 79 electrostatic, 80 and triboelectric energy harvesters (TEEHs) [81][82][83][84][85][86][87][88] have been developed and proven to be very capable of providing affordable, sustainable, and maintenance-free power solution for low-power portable and implantable devices. According to research reports, the power production of small scale VEHs ranges from 10 μW to 100 mW, and their integrations are limited to the applications of low power sensors and microelectronics.…”