Thermomechanical modelling of ion-conducting membrane for oxygen separation

被引：18

作者：

Blond, E. ^{[1
]}

Richet, N. ^{[2
]}

机构：

[1] Univ Orleans, CNRS, LMSP, UMR 8106,ENSAM Paris,ERT Design Ceram Struct High, F-45072 Orleans, France

[2] Air Liquide CRCD, F-78354 Jouy En Josas, France

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2008年 / 28卷 / 04期

关键词：

chemical expansion; ionic conductivity; perovskites; membranes; thermal expansion; mechanical properties;

D O I：

10.1016/j.jeurceramsoc.2007.07.024

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Dense mixed ionic conducting membranes are subjected to stresses induced by the oxygen activity gradient under operating conditions. This works proposed a thermomechanical model, taking into account such chemical induced strain. This model permits predictive simulation by the finite element method in transient and steady state to give guidelines for reactor operating conditions optimization. Modelling has shown that the maximum stress on the membrane depends on thermal gradient along the membrane and transient phase's management. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：793 / 801

页数：9