Estimation of the Hydraulic Load Experienced in Steam Generator during a Main Steam Line Break

摘要

Internal components of the Steam Generators used in Pressurised Heavy Water Reactors can experience a large thrust force during a postulated Main Steam Line Break. Thus may lead to the mechanical failure of the components. This is an important consideration in evaluating the structural integrity of internal components. RELAP-LOAD, a post processor of the thermal hydraulic safety analysis code RELAP4 / MOD6, has been used to predict the short time hydraulic loads. This study estimates the hydraulic load on the Steam Generator internals and the wall.