Passive power regulation and shutdown systems in compact high temperature reactor

Compact High Temperature Reactor (CHTR) is a 233U-Thorium fuelled, lead-bismuth cooled and beryllium oxide moderated reactor. This reactor, initially being developed to generate about 100 kWTh, power will have a core life of 15 years and will have several advanced passive safety features to enable its operation as compact power pack in remote areas not connected to the electrical grid. This application gives us the motivation to develop systems that will be able to passively regulate CHTR. This paper brings out the salient features of the passive power regulation system and the passive shutdown system. (author)