Back to home
Comparative study on core designs of an annular, prismatic HTGR for passive decay heat removal SAMBUU Odmaa1,2, TERBISH Jamiyansuren2, BYAMBAJAV Munkhbat1,2, and NANZAD Norov1,2   1. Department of Chemical and Biological Engineering, School of Engineering and Applied Sciences, National University of Mongolia, Ulaanbaatar, Mongolia (odmaa@seas.num.edu.mn, munkhbat@seas.num.edu.mn, norov@seas.num.edu.mn) 2. Nuclear Research Center, National University of Mongolia, Ulaanbaatar, Mongolia (t.jamiyansuren@gmail.com)   Abstract:In the present work, we have designed annular cores of HTGRs in which the number of inner reflector blocks were one, seven and nineteen. The power of these reactors was the same as 100 MWt, as well as the number of fuel blocks in core and core size were the same. Then the fundamental neutronic analyses of those uniform cores for criticality and burn-up were performed using the continuous energy Monte Carlo code MVP2.0 and MVPBURN with the nuclear data library of JENDL-4.0. Next, calculations by introducing uniformly distributed burnable poison particles to suppress the excess reactivity and to flatten the reactivity swing and power peaking factor (PPF) during core operation were performed and obtained the optimal condition.      Keyword:prismatic HTGR; inner reflector; nuclear energy, core design
	Click here for viewing full text.