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

Author

Listed:
  • 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)

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.

Suggested Citation

  • Dong Gyu Lee & Ji Woo Nam & Soo-Hyun Kim & Seong Wook Cho, 2021. "Structure Optimization of a High-Temperature Oxygen-Membrane Module Using Finite Element Analysis," Energies, MDPI, vol. 14(16), pages 1-29, August.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:16:p:4992-:d:614390
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