Source Term of Xi’an Pulsed Reactor in Extreme Severe Accident

Yang Ning; Tang Xiuhuan; Zhang Wenshou; Yuan Jianxin

doi:10.13832/j.jnpe.2014.06.0011

Volume 35 Issue 6

Feb. 2025

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Yang Ning, Tang Xiuhuan, Zhang Wenshou, Yuan Jianxin. Source Term of Xi’an Pulsed Reactor in Extreme Severe Accident[J]. Nuclear Power Engineering, 2014, 35(6): 11-16. doi: 10.13832/j.jnpe.2014.06.0011

Citation:

Yang Ning, Tang Xiuhuan, Zhang Wenshou, Yuan Jianxin. Source Term of Xi’an Pulsed Reactor in Extreme Severe Accident[J]. Nuclear Power Engineering, 2014, 35(6): 11-16. doi: 10.13832/j.jnpe.2014.06.0011

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Source Term of Xi’an Pulsed Reactor in Extreme Severe Accident

doi: 10.13832/j.jnpe.2014.06.0011

Northwest Institute of Nuclear Technology, Xi'an, 710024, China

Received Date: 2013-12-20
Rev Recd Date: 2014-09-02

Available Online: 2025-02-15

Abstract

Abstract

Inventories of radioactivity in Xi’an Pulsed Reactor（XAPR） are calculated, with the assumption that XAPR is continuously or intermittently operated at full power of 2MW until the fuel rods archive the design burnup. With a conservative releasing model, the biggest inventory 4.13×1016 Bq was selected to evaluate the source term of XAPR in an extreme severe accident, in which all fuel rods are supposed to be ruptured. The result shows that up to 41.0% of radioactive fission products is released in 1minute, the release lasts for about 5 minutes, and the total radioactivity released to environment is 4.54×1012Bq.
- Extreme severe accident,
- ORIGEN2,
- Source term,
- Radioactivity