The growing concern about climate change and the energy crisis have led to an increase in the development of technologies that reduce the environmental impact of society, such as renewable sources of energy or the use of energy carriers (such as hydrogen or methanol) that can be used with fuel cells. Fuel cells are electrochemical devices that convert directly and continuously chemical energy (from fuel) into electrical energy and heat with high efficiency. While they are widely known devices, there are still technological challenges that need to be addressed to cope with the extensive use of fuel cells. To study the performance of fuel cells, their technological improvement and the optimization of their working parameters, it is necessary the use of test benches. They allow the control of various working parameters while at the same time controlling and recording the intensity and voltage of the fuel cell. In this way it is possible to obtain the polarization curves, crossover current density and impedance spectroscopy of the fuel cell under controlled conditions. This study presents an air treatment system that supplies air to the cathode of fuel cells with controlled temperature, humidity and mass flow rates to be implemented on a test bench. This system provides a better understanding of the fuel cell behaviour and the processes that occur during its operation conditions, to address some of the technological challenges presented by fuel cells.
The growing concern about climate change and the energy crisis have led to an increase in the development of technologies that reduce the environmental impact of society, such as renewable sources of energy or the use of energy carriers (such as hydrogen or methanol) that can be used with fuel cells. Fuel cells are electrochemical devices that convert directly and continuously chemical energy (from fuel) into electrical energy and heat with high efficiency. While they are widely known devices, there are still technological challenges that need to be addressed to cope with the extensive use of fuel cells. To study the performance of fuel cells, their technological improvement and the optimization of their working parameters, it is necessary the use of test benches. They allow the control of various working parameters while at the same time controlling and recording the intensity and voltage of the fuel cell. In this way it is possible to obtain the polarization curves, crossover current density and impedance spectroscopy of the fuel cell under controlled conditions. This study presents an air treatment system that supplies air to the cathode of fuel cells with controlled temperature, humidity and mass flow rates to be implemented on a test bench. This system provides a better understanding of the fuel cell behaviour and the processes that occur during its operation conditions, to address some of the technological challenges presented by fuel cells. Read More
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