Axial Flux Electromagnetic Energy Harvester Driven by a Stirling Engine for Waste Heat Recovery

Energies, Journal Year: 2025, Volume and Issue: 18(7), P. 1620 - 1620

Published: March 24, 2025

In this paper, an axial flux electromagnetic energy harvester driven by a Stirling engine (AFEEH-SE) is presented for recovering waste heat above 200 °C. A gamma-type with slider-crank drive mechanism serves as the power unit to convert thermal into rotational mechanical energy. The comprises rotating magnet array and stationary coil array. Finite element simulations were conducted analyze compare voltage output under different parameter configurations. Subsequently, prototype utilizing mineral oil combustion source was designed, achieving speed of 950 rpm open-circuit conditions. Through systematic adjustments parameters, optimal performance configuration determined maximize harvester. Under optimized configuration, AFEEH-SE achieved effective 57.13 mW, capable charging 2.2 mF capacitor 28 V in 49 s. This study demonstrates feasibility practical applications provides solid foundation future field recovery.

Language: Английский

---

Frequency influence on freestanding-mode triboelectric nanogenerators

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162060 - 162060

Published: March 1, 2025

Language: Английский

---

Flexible magnet/Fe layers-based triboelectric sensors for continuous monitoring of elbow bending with a low minimum sensing angle

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110946 - 110946

Published: April 1, 2025

Language: Английский

---

Self-powered and integral self-healing dielectric elastomer actuator with a robust interface

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110974 - 110974

Published: April 1, 2025

Language: Английский

---

Enhancing bandwidth of triboelectric vibration energy harvesters through magnetic tuning

Mechanical Systems and Signal Processing, Journal Year: 2025, Volume and Issue: 232, P. 112704 - 112704

Published: April 14, 2025

Language: Английский

---

Rotational Triboelectric Nanogenerator with Machine Learning for Monitoring Speed

Sensors, Journal Year: 2025, Volume and Issue: 25(8), P. 2533 - 2533

Published: April 17, 2025

The triboelectric nanogenerator (TENG) is an efficient mechanical energy harvesting device that exhibits excellent performance in the fields of micro-nano and self-powered sensing. In practical application scenarios, it very important to monitor speed rotational machinery real time. order a wider range speeds, TENG based on machine learning algorithm designed this paper. peak power reaches maximum 6.6 mW can instantly light up 65 LEDs connected series. results show detect speed, greatly improving detection range. neural network trained tested collected electrical signals at different speeds so as health machine. For analysis experimental data, normalization data more label assignment method Gaussian soft coding were considered. study found after normalization, classification prediction accuracy for above 0.9, are stable efficient. Therefore, model monitoring proposed by us be applied early warning rotating actual engineering projects.

Language: Английский

---

High-Performance Solid-Liquid Triboelectric Nanogenerator Enabled by Dual Physicochemical Modification for Wearable Sensing

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 111061 - 111061

Published: April 1, 2025

Language: Английский

---