Physical characteristics of small modular Pb-Bi cooled reactor with nitride nuclear fuel

Xianbao YUAN; Liangzhi CAO; Hongchun WU

doi:10.11889/j.0253-3219.2017.hjs.40.100603

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Physical characteristics of small modular Pb-Bi cooled reactor with nitride nuclear fuel

NUCLEAR ENERGY SCIENCE AND ENGINEERING | 更新时间：2021-05-19

- Physical characteristics of small modular Pb-Bi cooled reactor with nitride nuclear fuel
- NUCLEAR TECHNIQUES Vol. 40, Issue 10, Article number: 100603(2017)
- 作者机构：
  
  1.三峡大学理学院机械与动力学院宜昌 443002
  2.西安交通大学核科学与技术学院西安 710049
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China;National Natural Science Foundation of China;the China Postdoctoral Science Foundation;the Shaanxi Postdoctoral Science Foundation
- DOI：10.11889/j.0253-3219.2017.hjs.40.100603
  CLC： TL27
- Received：30 November 2016，
  
  Revised：07 April 2017，
  
  Published：2017-10
- 稿件说明：
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Xianbao YUAN, Liangzhi CAO, Hongchun WU. Physical characteristics of small modular Pb-Bi cooled reactor with nitride nuclear fuel[J]. Nuclear techniques, 2017, 40(10): 100603
DOI：

Xianbao YUAN, Liangzhi CAO, Hongchun WU. Physical characteristics of small modular Pb-Bi cooled reactor with nitride nuclear fuel[J]. Nuclear techniques, 2017, 40(10): 100603 DOI： 10.11889/j.0253-3219.2017.hjs.40.100603.

摘要

国际原子能机构（International Atomic Energy Agency，IAEA）认为小型模块化反应堆具有很好提高核能安全性、经济性和防止核扩散的能力，是未来核能最具发展前景的堆型之一。为适应未来核能发展的需求，提出了一种铅铋冷却氮化物燃料小型模块化反应堆（Small Modular Pb-Bi Cooled Reactor with Nitride Nuclear Fuel，SMPBN）设计方案，并利用PIJ组件计算程序和CITATION堆芯计算程序对SMPBN的物理特性和安全特性，包括反应性系数及其随燃耗变化、卸料燃耗、功率峰因子、燃料转换比和停堆余量等进行了深入分析。通过分析，认为SMPBN在20年寿期内，具有很好的燃料转换能力，不需要换料，反应性波动很小，反应性系数均为负值，具有固有安全性，符合国际上第四代反应堆的要求。

Abstract

Background

The small modular reactor is considered by International Atomic Energy Agency (IAEA) to be one of the most promising nuclear reactors in the future

which could not only improve the safety and economy of nuclear energy

but also prevent the nuclear proliferation.

Purpose

This paper puts forward a small modular Pb-Bi cooled reactor with nitride nuclear fuel (SMPBN) which is designed to meet the requirements for nuclear energy improvement.

Methods

The physical characteristics and security features of the SMPBN were analyzed by PIJ and CITATION

including the reactive coefficient and its change with burnup

discharge burnup

power peak factor

fuel conversion ratio and shut-down allowance

etc

Results

The SMPBN is expected to possess a good fuel conversion capability during the life-time of 20 a

with a small reactive fluctuation and a negative reactivity coefficient

which means that the SMPBN has inherent safety.

Conclusion

It is considered to be satisfying the requirements of the G-IV

which provides a valuable reference for development of small modular fast neutron reactor in future.

关键词

Keywords

references

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