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Modelling of a Pressure Element for Solid Oxide Fuel Cell Stack

The paper deals with the structural analysis of a corrugated pressure element for the SOFC stack. The aim of the element application is assurance of the fuel cell tightness and sufficient electrical contact between components by means of its uniform pressure. In this paper, a method of the pressure element modelling is proposed and results of its behaviour analysis for different assembly conditions (free ends, fixed ends and ends subjected to friction force) are presented. Vertical and horizontal stiffness of the corrugated element as a function of its geometrical parameters has been determined which facilitates computer simulation and engineering design of the element.