FIELD: electricity.
SUBSTANCE: fuel element system is proposed, including a fuel element for generation of energy by implementation of an electrochemical reaction between an oxidant gas supplied to an oxidant electrode, and a fuel gas supplied to a fuel electrode; a system (HS) of fuel gas supply for supply of fuel gas to the fuel electrode; and a controller for control of the fuel gas supply system (HS), in order to supply fuel gas to the fuel electrode, besides, the controller changes pressure, when the output of the side of the fuel electrode is closed, at the same time the controller periodically changes pressure of the fuel gas in the fuel electrode on the basis of the first profile of pressure change for variation of pressure during the first pressure swing (ΔP1).
EFFECT: higher durability of fuel elements by adjustment of pressure at electrodes.
5 cl, 22 dwg
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