Prospects for the development of a direct-flow vessel reactor with superheated steam

A system of new technical solutions, which will make it possible to develop a reactor system using a coolant with supercritical parameters and efficiency 44%, solving the main problems of the nonuniformity of coolant heating in the core, is examined. This sytem contains a core based on fuel micropellets, a multistep fuel assembly with transverse coolant flow, coolant mixing after each step, and continual reloading of fuel micropellets into each fuel assembly. __________ Translated from Atomnaya énergiya, Vol. 100, No. 3, pp. 197–204, March, 2006.