Simulation Guided Hand-Driven Portable Triboelectric Nanogenerator: Design, Optimisation, and Evaluation.

Area of Science:

• Triboelectric Nanogenerators
• Energy Harvesting
• Mechanical Engineering

Background:

• Triboelectric nanogenerators (TENGs) offer a promising avenue for harvesting mechanical energy.
• Optimizing TENG performance requires understanding the interplay of design parameters and operational conditions.

Purpose of the Study:

• To design and optimize a hand-driven rotational triboelectric nanogenerator (HDR-TENG) based on mathematical modeling.
• To develop a cost-effective and portable power source for remote applications and educational purposes.

Main Methods:

• Mathematical modeling was employed to guide the design and optimization of the HDR-TENG.
• Additive manufacturing and commercially available components were utilized for fabrication.
• Performance was evaluated based on rotational speed, output voltage stability, and charging capability.

Main Results:

• The fabricated HDR-TENG achieved stable and adjustable rotational speeds up to 15,000 rpm.
• Consistent output voltage was maintained over 50,000 cycles using Nylon 66 and PTFE.
• A 47 μF capacitor was charged to 2.2 V within one minute.

Conclusions:

• The study presents a cost-effective, portable HDR-TENG with high rotational speed, power output, and durability.
• This technology has potential applications for powering point-of-care devices in resource-poor settings.
• The device is suitable for science and engineering education, demonstrating fundamental energy harvesting principles.