ScholarWorks@중앙대학교

초록

This study proposes an efficient system that enhances proton exchange membrane fuel cell performance by integrating a pressure swing adsorption oxygen concentrator. By increasing oxygen concentration, this approach improves mass transport and accelerates the oxygen reduction reaction, overcoming limitations caused by the low partial pressure of oxygen in ambient air. A prototype pressure swing adsorption-based oxygen concentrator was developed, and its performance was evaluated across various operational parameters. Additionally, a single fuel cell was tested with oxygen concentrations to assess the impact of oxygen enrichment on overall system output, including the energy consumption of the pressure swing adsorption unit. Results showed that at an optimized adsorption pressure of 1.5 bar, the pressure swing adsorption system produced an oxygen-enriched stream with a concentration of 47 %. Despite the additional power required to operate the pressure swing adsorption unit, the integrated system achieved a net power output increase of 38.5 %. These findings demonstrate the feasibility of pressure swing adsorption-integrated fuel cells for high-power applications, including transportation and stationary power generation.

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