A Simulation of Rod Ejection Accident in an Advanced Small PWR Core without Soluble Boron

Journal Article · Fri Jul 01 04:00:00 EDT 2016 · Transactions of the American Nuclear Society

OSTI ID:23042842

Yoo, Hoseong; Hong, Ser Gi ^[1]

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1. Department of Nuclear Engineering, Kyung Hee University: 1732 Deokyoung-daero, Giheung-gu, Yongin, Gyeonggido, 446-701 (Korea, Republic of)

The soluble boron is used to control the long-term excess reactivity in commercial PWRs but the use of soluble boron has disadvantages such as complications of the reactor coolant system and generation of the liquid wastes. Therefore, there have been lots of interests in designing PWR reactor without soluble boron. Recently, we have designed new small 50 MWe PWR core having no soluble boron for long-term reactivity control. In the core, the excess reactivity is controlled by using the control rods and the advanced particle type burnable poisons over the cycle. The one of the most important issues for the boron-free core is to check if the core is safe under the rod ejection accidents because the reactor is operated with insertion of the control rods. The objective of this work is to give the detailed analysis results of the rod ejection accidents for the advanced small PWR core were analyzed. (authors)

• OSTI ID: 23042842
• Journal Information: Transactions of the American Nuclear Society, Journal Name: Transactions of the American Nuclear Society Vol. 115; ISSN 0003-018X
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
BORON
BURNABLE POISONS
COMPUTERIZED SIMULATION
CONTROL ELEMENTS
LIQUID WASTES
PWR TYPE REACTORS
REACTIVITY
REACTOR COOLING SYSTEMS
REACTOR DESIGN
ROD EJECTION ACCIDENTS