TY - EJOU AU - Song, K.N. TI - Effect of Weld Properties on the Thermo-Mechanical Structural Analysis of Prototype Process Heat Exchanger T2 - Structural Durability \& Health Monitoring PY - 2012 VL - 8 IS - 3 SN - 1930-2991 AB - A PHE (Process Heat Exchanger) is a key component in transferring the high temperature heat generated from a VHTR (Very High Temperature Reactor) to the chemical reaction for the massive production of hydrogen. A performance test on a small-scale PHE prototype made of Hastelloy-X is currently under way a small-scale gas loop at the Korea Atomic Energy Research Institute. Previous research on the elastic high-temperature structural analysis of the small-scale PHE prototype has been performed using the parent material properties over the whole region. In this study, an elastic-plastic high-temperature structural analysis considering the mechanical properties in the weld-affected zone was performed, from a macroscopic viewpoint. KW - Process Heat Exchanger (PHE) KW - High-Temperature Structural Analysis KW - Very High Temperature Reactor (VHTR) KW - Mechanical Properties in Weld-Affected Zone DO - 10.32604/sdhm.2012.008.209