Abstract
Currently, fuel cells are increasingly used in industrial installations, means of transport and household applications as a source of electricity and heat. The paper presents the results of experimental tests of PEMFC at variable load, which characterizes the cell's operation in real installations. The measurements made show changes in the performance of the fuel cell during step changing or smooth changing of an electric load. Load was carried out as a change in the current or a change in the resistance of the receiver. The analysis covered the times of reaching steady states and the efficiencyof the fuel cell system taking into account additional devices. The analysis of the measurement results will allow determining the possibility of using fuel cells in installations with a rapidly changingload profile and indicate possible solutions to improve the performance of the installation.
Highlights
Fuel cells are one of the technologies considered for the production of electricity and heat, which is supposed to allow for optimal use of fuels
The possibility of choosing different types of cells, with powers ranging from a few watts to even megawatts, allows using them in power supply systems of different kinds [2, 3]
They can operate in individual power supply systems and can
Summary
Fuel cells are one of the technologies considered for the production of electricity and heat, which is supposed to allow for optimal use of fuels. These are devices in which there is a direct conversion of chemical energy of fuel into electricity, in electrochemical processes, without thermal and mechanical transformations. The possibility of choosing different types of cells, with powers ranging from a few watts to even megawatts, allows using them in power supply systems of different kinds [2, 3].
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