Date:

2025-04-30

Title of Paper:

Preliminary safety analysis on loss of flow accidents and external source transients for LBE cooled ADSR core

Journal:

Progress in Nuclear Energy

Summary:

In this paper, preliminary safety studies on the 800 MWth accelerator-driven system (ADS) proposed by
Xi'an Jiaotong university are presented. The system is a pool type facility coupling a proton accelerator
with current in the range of 17e23 mA and a sub-critical core by means of a spallation target. The
RELAP5/MOD3.3 code is selected as a base tool. In order to simulate the system, the point kinetics model
is modified and the property of lead-bismuth is implemented to meet the requirement of ADS analysis.
This paper focuses on the assessment of its response to the loss of flow events. The first part is originated
from the failure of the pump and the second part derives from the significant flow blockage at a fuel
assembly inlet. The reactivity insertion accidents are caused by the change of the proton beam current.
The results show that the safety and criteria are satisfied and the system is tolerant to the loss of flow
accidents and proton beam doubled accident and is sensitive to the external neutron changing.

Co-author:

Tianyu Lu, Jianqiang Shan, Junli Gou, Bin Zhang, Bo Zhang, Li Ge, Yuan Yuan, Zi

Volume:

88 (2016)

Page Number:

134- 146

Translation or Not:

No

Date of Publication:

2016-01-09