Structure Optimization of a High-Temperature Oxygen-Membrane Module Using Finite Element Analysis

Dong Gyu Lee, Ji Woo Nam, Soo-Hyun Kim and Seong Wook Cho
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Dong Gyu Lee: School of Mechanical Engineering, Chung-Ang University, 221 Heukseok-Dong, Dongjak-Gu, Seoul 156-756, Korea
Ji Woo Nam: Center for Defense Resource Management, Korea Institute for Defense Analyses, 37, Hoegi-ro, Dongdaemun-gu, Seoul 02455, Korea
Soo-Hyun Kim: Energy Materials Laboratory, Korea Institute of Energy Research, Jang-dong 71-2, Daejeon 305-343, Korea
Seong Wook Cho: School of Mechanical Engineering, Chung-Ang University, 221 Heukseok-Dong, Dongjak-Gu, Seoul 156-756, Korea

Energies, 2021, vol. 14, issue 16, 1-29

Abstract: The oxygen transport membrane (OTM) is a high-density ion-conducting ceramic membrane that selectively transfers oxygen ions and electrons through the pressure differential across its layers. It can operate at more than 800 °C and serves as an economical method for gas separation. However, it is difficult to predict the material properties of the OTM through experiments or analyses because its structure contains pores and depends on the characteristics of the ceramic composite. In addition, the transmittance of porous ceramic materials fluctuates strongly owing to their irregular structure and arbitrary shape, making it difficult to design such materials using conventional methods. This study analyzes the structural weakness of an OTM using CAE software (ANSYS Inc., Pittsburgh, PA, USA). To enhance the structural strength, a structurally optimized design of the OTM was proposed by identifying the relevant geometric parameters.

Keywords: ceramic composite materials; finite element method; material properties; membrane (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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