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

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.

Design and optimization of injection needle for digital PCR detector

“…Figure 12 shows the comparison of results before and after optimization. The results show that the strength, stiffness and stability of the optimized injection needle are guaranteed and meet the application requirements [15].…”