Work

Development of fuel cell power technology for charging high-temperature superconducting coil: Effect of variable resistor

Year: 2025

Type: article

Abstract: This study focuses on developing fuel cell power technology for charging superconducting coils using variable resistor. For this purpose, a variable resistor is fabricated, and experimental equipment is built to control the amount of current applied to the superconducting coil by fixing the amount of gas supplied to the fuel cell and adjusting its driving voltage. The current and magnetic flux densities increase and decrease depending on the variable resistor. A variable resistor is modified by considering the characteristic curve of the fuel cell, and the flow rate supplied to the unit cell is controlled to overcome inefficient energy use. The amount of current charged to the superconducting coil increases depending on the supplied flow rate. Therefore, the measured magnetic flux density increases according to the charged current. Consequently, the fuel cell characteristic evaluation results and data measured while driving the superconducting coil are almost identical.

Source: Heliyon

DOI: 10.1016/j.heliyon.2025.e42560

Authors: Young Min Seo, Hyun Woo Noh, Tae Hyung Koo, Rock Kil Ko, Dong Woo Ha

Institution: Korea Electrotechnology Research Institute

Language: English

Topic: Superconducting Materials and Applications

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $2,270