Mechanical Strength Design Analysis of Molecular Sieve Vessel of Helium Purification Systems in RDE

Abstract Experimental Power Reactor (RDE) uses a type of pebble bed fuel and helium gas as the primary coolant. In order to maintain the quality of helium as a coolant in accordance with the established requirements, the helium purification system is designed. One part of the main components of this helium purification system facility that absorbs CO2, CH4, and H2O is a molecular sieve vessel. The purpose of this study is to determine the ability of mechanical strength of a molecular sieve vessel through simulation testing using Computer Aided Three-dimensional Interactive Application (CATIA) software. The steps taken in analyzing the mechanical strength of molecular sieve designs include; built a 3-dimensional model, entering data on the mechanical properties of the material used, and simulating the operation at a test pressure of 30 bar and a temperature ranging from 50 °C to 250 °C. At a pressure of 30 bar and a temperature of 200 °C, the mechanical voltage result was 2.13 × 109 N/m2 that exceeded the yield strenght of 304 Stainless Steel material at 1.7 × 109 N / m2. Furthermore, the smallest translational displacement was 0.218 mm.