EXPERIMENTAL STUDY ON THE PERFORMANCE OF A 100 W PEM FUEL CELL UNDER THE INFLUENCE OF HYDROGEN PRESSURE
DOI:
https://doi.org/10.18623/rvd.v22.n7.4111Keywords:
Proton Exchange Membrane Fuel Cell (PEMFC), Water and Heat Management in PEMFC, Hydrogen Discharge, Hydrogen Safety, Hydrogen GasAbstract
PEM fuel cells are a clean, efficient, and low-emission energy source. However, the system performance is highly dependent on operating conditions, especially the inlet pressure. This study focused on a 100W PEMFC fuel cell system operating under a 1Ω resistive load, allowing a current of approximately 8A. Experiments were performed at pressure levels of 0; 0.25; 0.5; 0.75 and 1bar. Parameters such as voltage, current, pressure, and hydrogen flow were measured, processed, and analyzed to evaluate the impact of pressure changes on system performance. The results showed that the inlet hydrogen pressure strongly affected the performance and stability of the 100W PEM cell. At 0.25 bar, the performance was highest but fluctuated greatly, while at 0.5–0.75bar, the performance decreased slightly but the operation was more stable. In particular, at 0.75bar the system maintains stable current and voltage, suitable for continuous exploitation and safer than other levels.
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