This final thesis investigates the impact of different air-cooling configurations on the performance of a PEM fuel cell. Six configurations were tested experimentally, varying the direction of air flow and the power of the fans. Fuel cell performance was evaluated through measurements of polarization curves and calculating the output power. The results showed that a higher and properly directed air flow improves cooling and enables stable operation under higher loads. The best results were achieved with the configuration using the highest fan speed and with blowing air into the fuel stack.
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