The Effects of Component Tolerances on the Thermo-mechanical Reliability of SOFC Stacks

被引：2

作者：

Greco, F. ^{[1
]}

Nakajo, A. ^{[1
]}

Wuillemin, Z. ^{[2
]}

Van Herle, J. ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Fac Engn Sci & Technol STI, Grp Energy Mat, Lausanne, Switzerland

[2] HTceramix SOLIDpower SA, 26 Ave Sports, CH-1400 Yverdon, Switzerland

来源：

SOLID OXIDE FUEL CELLS 15 (SOFC-XV) | 2017年 / 78卷 / 01期

基金：

欧盟地平线“2020”;

关键词：

MECHANICAL-PROPERTIES; PLANAR SOFC; FAILURE; CELLS;

D O I：

10.1149/07801.2271ecst

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The reliability of solid oxide fuel cell (SOFC) systems is closing the gap to meet the requirements for market implementation. Finite-element (FE) stack models, typically used for stack reliability analyses, commonly consider idealized components. In reality, dimensions and geometry of the produced stack components have statistical variations. The resulting variability in shape is expected to have an impact on the distribution of the contact pressure over the cell active area. In this study, the initial deformation of the metallic interconnect (MIC) is implemented in the stack model. The simulation starts with the simulation of the stack production and qualification. The results of this first calculation are used to simulate either thermal cycling or prolonged continuous operation. The distribution of the simulated contact pressure on the active area is found to evolve differently during thermal cycling and operation, if the initial deformation of the MIC is included in the stack model.

引用

页码：2271 / 2283

页数：13

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