Concept Design of the Multi-Application Integrated Light Water Reactor and Normal Operation Analysis

According to the currently developing status of the integrated light water reactor, a multi-application integrated light water reactor concept design is proposed in this paper. The arc-shaped reactor core fuel elements are adopted, and once- through steam generator is used to produce steam. The pressurizer is located outside the reactor vessel which uses electric heating method. There are pumps in the reactor vessel used to drive the coolant flow to remove the nuclear heat. This paper also designs the startup bypass system of the once through steam generator and passive residual heat removal system. And the system code RELAP5/SCDAPSIM is used to simulate the process during the power change. The normal operation process of the reactor coolant system is introduced in detail.