Development of coupled neutronics/thermal_hydraulics test case for HPLWR

International Conference for Young Scientists, Specialists, and Postgraduates on Nuclear Reactor Physics 2016

Pham, P.^1 ; Gamtsemlidze, I.D.^1 ; Bahdanovich, R.B.^1 ; Nikonov, S.P.^1 ; Smirnov, A.D.^1

National Nuclear Research University, MEPhI (Moscow Engineering Physics Institute), Department of Theoretical and Experimental Physics of Nuclear Reactors, Kashirskoe shosse 31, Moscow

115409, Russia^1

关键词: Generation iv nuclear;    High-performance light water reactors;    Innovative design;    Power distributions;    Subcritical pressure;    Supercritical water;    Supercritical water reactors;    Thermal hydraulics;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/781/1/012026/pdf
DOI  :  10.1088/1742-6596/781/1/012026

来源: IOP

【 摘 要 】

The High-Performance Light Water Reactor (HPLWR) is the European concept of a supercritical water reactor (SCWR) which is one of the most promising and innovative designs of the Generation IV nuclear reactor concepts. The thermal-hydraulics behavior of supercritical water is significantly different from water at sub-critical pressure because of the difference in the specific heat value. Coupled analysis of HPLWR assembly neutronics and thermal-hydraulics has become important because of the strong influence of the water density on the neutron spectrum and power distribution. Programs MCU (Monte-Carlo Universal) and ATHLET (Analysis of Thermal-hydraulics of Leaks and Transients) were used for better estimation of power and temperature distribution in HPLWR assembly.