Enhancing a loosely coupled inductive wireless power transfer system for LED-driven slurry photocatalytic reactors

Zulkifly, Ab Aziz and Mohd Mawardi, Saari and Mohd Aufa Hadi Putera, Zaini and Nurul A'in, Nadzri and Chin, Sim Yee (2024) Enhancing a loosely coupled inductive wireless power transfer system for LED-driven slurry photocatalytic reactors. Journal of Microwave Power and Electromagnetic Energy, 58 (3). 207 -232. ISSN 0832-7823. (Published)

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Abstract

To improve the irradiation profile in a conventional photocatalytic reactor, an LED-based light emitter energized by the inductive power transmission (IPT) method has been proposed recently. However, technical challenges such as low coupling due to the asymmetrical wireless coupler, dynamic impedance due to multiple receivers and changing magnetic properties in the transmitter core, and ease in upscaling remain to be addressed. This work proposes an IPT system for an LED-based photocatalytic reactor using a toroidal transformer to match the impedance between a modified Helmholtz transmitter coil and a class-E inverter. A finite element magnetic field simulation and analytical calculation of the induced voltage are used to assess the field uniformity inside the coil. The mutual inductance at selected locations within the coil volume and the power transfer efficiency (PTE) are evaluated. The proposed system requires less than 2 W to generate a uniform magnetic field inside a 10.6 L acrylic cylinder with an induced voltage of 13.9 ± 0.95 Vrms along the cylinder’s central axis. The proposed wireless coupler achieves a coupling coefficient of 0.013–0.034 and a PTE of 23.7%, outperforming similar systems with asymmetrical coupler design while offering a versatile solution for integrating IPT technology into wastewater treatment.

Item Type:	Article
Additional Information:	Indexed by Scopus
Uncontrolled Keywords:	Annular reactor; Class-E inverter; Fluidization; Photocatalytic; Redox reaction; Wireless power transfer
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Faculty/Division:	Faculty of Electrical & Electronic Engineering Institute of Postgraduate Studies Centre for Advanced Industrial Technology Faculty of Chemical and Process Engineering Technology Centre for Research in Advanced Fluid & Processes (Fluid Centre)
Depositing User:	Dr. Mohd Mawardi Saari
Date Deposited:	23 Apr 2025 04:05
Last Modified:	23 Apr 2025 04:05
URI:	http://umpir.ump.edu.my/id/eprint/44388
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