Supercritical water-cooled reactor system concept

Types of supercritical water-cooled reactor concepts and main system parameters... 

Safety system in a pressure vessel-type supercritical water-cooled reactor concept... 

Novog, D., McGee, G., Rhodes, D., Yetisir, M., 2012. Safety concepts and systems of the Canadian SCWR. In Proc. 3rd China—Canada Joint Workshop on Supercritical Water-Cooled Reactors (CCSC-2012), Xi an, Shaanxi, China. 

The supercritical water cooled reactor concept allows both thermal and fast spectrum cores to be designed with the same plant system. Although the specific designs differ between the two types of cores, the basic design principles are the same. This chapter describes the core design of the thermal spectrum core (the Super LWR), in which the supercritical water serves as both the reactor coolant and the neutron moderator. The fast spectrum core (Super Fast Reactor) concept is described in Chap. 7. 

Two-circuit heat removal system with steam-water cycle of supercritical parameters is very difficult for realization, because super high pressure steam generator ( 250 atm) should be located inside the reactor vessel (BREST concept), and there is a real possibility of the core blockage by the products of water and heavy coolant interaction resulting in the core melt- down. Such incident took place in the propulsion reactor cooled by PbBi [7.11],... 

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