TY - GEN
T1 - Research on Mitigation Measures for Severe Accident Source Terms of Small Modular Reactor
AU - Xu, Tao
AU - Han, Dujuan
AU - Zhang, Bin
AU - Wang, Junlong
AU - Liu, Jiajia
AU - Wu, Yirui
AU - Tian, Chao
AU - Xia, Mingming
AU - Ma, Haifu
N1 - Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
PY - 2023
Y1 - 2023
N2 - Small modular reactor (ACP100), as a key scientific and technological project of third-generation nuclear power technology of China National Nuclear Corporation, must achieve the purpose of eliminating large-scale radioactive substances release. In order to meet this requirement, it is necessary to study the source term release and mitigation of small modular reactor in severe accident. In this paper, ISAA code is used to model the small modular reactor, and the typical severe accident sequence is selected to simulate the accident and calculate the source term. Containment spray and double containment model are set up respectively. The feasibility and effectiveness of the two measures on the source term mitigation are illustrated by comparing the source term results. The calculation results show that containment spray and double containment can significantly alleviate the release of radionuclides under severe accident conditions, and can play a role in reducing radioactivity. Meanwhile, for double containment, the leak rate from the inner containment to the annular space has a great impact on the mitigation of the source terms. To reduce the release of the source term to the environment, it should be reduced as far as possible.
AB - Small modular reactor (ACP100), as a key scientific and technological project of third-generation nuclear power technology of China National Nuclear Corporation, must achieve the purpose of eliminating large-scale radioactive substances release. In order to meet this requirement, it is necessary to study the source term release and mitigation of small modular reactor in severe accident. In this paper, ISAA code is used to model the small modular reactor, and the typical severe accident sequence is selected to simulate the accident and calculate the source term. Containment spray and double containment model are set up respectively. The feasibility and effectiveness of the two measures on the source term mitigation are illustrated by comparing the source term results. The calculation results show that containment spray and double containment can significantly alleviate the release of radionuclides under severe accident conditions, and can play a role in reducing radioactivity. Meanwhile, for double containment, the leak rate from the inner containment to the annular space has a great impact on the mitigation of the source terms. To reduce the release of the source term to the environment, it should be reduced as far as possible.
KW - Mitigation measures
KW - Sensitivity analysis
KW - Severe accident
KW - Small modular reactor
KW - Source term calculation
UR - https://www.scopus.com/pages/publications/85161231879
U2 - 10.1007/978-981-19-8780-9_112
DO - 10.1007/978-981-19-8780-9_112
M3 - 会议稿件
AN - SCOPUS:85161231879
SN - 9789811987793
T3 - Springer Proceedings in Physics
SP - 1159
EP - 1168
BT - Proceedings of the 23rd Pacific Basin Nuclear Conference, Volume 2 - PBNC 2022
A2 - Liu, Chengmin
PB - Springer Science and Business Media Deutschland GmbH
T2 - 23rd Pacific Basin Nuclear Conference, PBNC 2022
Y2 - 1 November 2022 through 4 November 2022
ER -