The Effects of Reflector on Core Reactivity for Conceptual Soluble Boron Free SMR

Journal Article · Sat Jul 01 04:00:00 EDT 2017 · Transactions of the American Nuclear Society

OSTI ID:23050320

Jun, Seunghwan; Kim, Jinsun; Chang, Do Ik; Seong, Kibong ^[1]

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1. KEPCO NF, 242, 989 beon-gil, Daedeokdae-ro, Yuseong-gu, Daejeon, Republic of Korea (Korea, Republic of)

Various small modular reactor (SMR) designs have been proposed by the nuclear vendors and universities in order to address the energy needs for developing countries and remote communities. Most of them target for the long-term fuel cycle of 4 years or more to achieve high availability. In addition, soluble boron free operation is proposed to simplify the primary system, to enhance the safety characteristics by inherent negative moderator temperature coefficients, etc. The neutron economy should be improved to achieve longer cycle length with a small core. Therefore, analysis of reflector for Conceptual Soluble Boron Free SMR. (CSBF-SMR) is required. In this study, five materials for radial reflector were selected to investigate the effect on core reactivity. Their thickness was also analyzed to get an optimum configuration. The goal of this study is to determine optimum material and thickness of reflector of the CSBF-SMR.

• OSTI ID: 23050320
• Journal Information: Transactions of the American Nuclear Society, Journal Name: Transactions of the American Nuclear Society Vol. 116; ISSN 0003-018X
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BORON
FUEL CYCLE
MODERATORS
NEUTRON FLUX
OPERATION
REACTOR DESIGN
REACTOR SAFETY
SMALL MODULAR REACTORS
TEMPERATURE COEFFICIENT