MC21/CTF and VERA multiphysics solutions to VERA core physics benchmark progression problems 6 and 7

Nuclear Engineering and Technology

Ann E. Kelly¹  Daniel J. Kelly, III¹  Brian N. Aviles¹  Benjamin S. Collins²  Andrew T. Godfrey²  Robert K. Salko² 

[1] Bechtel Marine Propulsion Corporation, P.O. Box 1072, Schenectady, NY, 12301-1072, USA;Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee, 37830, USA;

关键词: CTF;    MC21;    MPACT;    Multiphysics;    VERA;   

DOI  :  10.1016/j.net.2017.07.016

来源: DOAJ

【 摘 要 】

The continuous energy Monte Carlo neutron transport code, MC21, was coupled to the CTF subchannel thermal-hydraulics code using a combination of Consortium for Advanced Simulation of Light Water Reactors (CASL) tools and in-house Python scripts. An MC21/CTF solution for VERA Core Physics Benchmark Progression Problem 6 demonstrated good agreement with MC21/COBRA-IE and VERA solutions. The MC21/CTF solution for VERA Core Physics Benchmark Progression Problem 7, Watts Bar Unit 1 at beginning of cycle hot full power equilibrium xenon conditions, is the first published coupled Monte Carlo neutronics/subchannel T-H solution for this problem. MC21/CTF predicted a critical boron concentration of 854.5 ppm, yielding a critical eigenvalue of 0.99994 ± 6.8E-6 (95% confidence interval). Excellent agreement with a VERA solution of Problem 7 was also demonstrated for integral and local power and temperature parameters.

【 授权许可】

Unknown