Abstract
In this study, we propose a module-type triboelectric nanogenerator (TENG) capable of harvesting electricity from a variety of mechanical energy sources and generating power from diverse forms that fit the modular structure of the generator. The potential energy and kinetic energy of water are used for the rotational motion of the generator module, and electricity is generated by the contact/separation generation mode between the two triboelectric surfaces inside the rotating TENG. Through the parametric design of the internal friction surface structure and mass ball, we optimized the output of the proposed structure. To magnify the power, experiments were conducted to optimize the electrical output of the series of the TENG units. Consequently, outputs of 250 V and 11 μA were obtained when the angle formed between the floor and the housing was set at 0° while nitrile was set as the positively charged material and the frequency was set at 7 Hz. The electrical signal generated by the module-type TENG can be used as a sensor to recognize the strength and direction of various physical quantities, such as wind and earthquake vibrations.
Highlights
As the applications of Internet of Things sensors increase, much attention is given to energy harvesting, which is a technology that enables self-generation [1]
By using wind power, the direction of the wind can be detected [20–23] and the amount of rainfall can be measured [24–28]. It can be seen from these previous works that researchers have aimed to harvest kinetic energy effectively, but little research has been conducted on a module-type triboelectric nanogenerator (TENG)
The proposed modular form enables versatility in the application of the TENG because it can be attached to various structures of objects that generate mechanical energy
Summary
As the applications of Internet of Things sensors increase, much attention is given to energy harvesting, which is a technology that enables self-generation [1]. By using wind power, the direction of the wind can be detected [20–23] and the amount of rainfall can be measured [24–28] It can be seen from these previous works that researchers have aimed to harvest kinetic energy effectively, but little research has been conducted on a module-type TENG. In the module-type TENG, both the positively and negatively charged materials are placed in the cylindrical housing to form a single structure, unlike in the TENG of previous studies in which negatively and positively charged. The proposed modular form enables versatility in the application of the TENG because it can be attached to various structures of objects that generate mechanical energy. Balls developed module-type TENG in harvesting various types of kinetic energy, an output performance test wasof conducted in vertical, pendulum, and rotational motions.and mold.
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