RETRAN Modeling for CPR1000 Designed Transient Calculation

This paper discusses the method about RETRAN modeling for designed transient calculation of CPR1000. Firstly, the geometric parameters of the main equipments in the nuclear island are calculated. Secondly, according to the needs of stress calculation, we simulate the main equipments in a detailed way during which a large amount of volume and heat structures are modeled. As a result, the model basically meets the requirement of transient analysis and addition in stress analysis.