Preliminary analysis of fuel management for a small modular molten salt fast reactor

Guomin SUN; Maosong CHENG; Zhimin DAI

doi:10.11889/j.0253-3219.2016.hjs.39.070603

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Preliminary analysis of fuel management for a small modular molten salt fast reactor

NUCLEAR ENERGY SCIENCE AND ENGINEERING | 更新时间：2021-05-24

- Preliminary analysis of fuel management for a small modular molten salt fast reactor
- NUCLEAR TECHNIQUES Vol. 39, Issue 7, Article number: 070603(2016)
- 作者机构：
  
  1.中国科学院上海应用物理研究所嘉定园区上海 201800;
  2.中国科学院大学北京 100049
- 作者简介：
- 基金信息：
  
  Supported by Strategic Pilot Science and Technology Project of Chinese Academy of Sciences
- DOI：10.11889/j.0253-3219.2016.hjs.39.070603
  CLC： TL329.2
- Received：27 April 2016，
  
  Revised：09 May 2016，
  
  Published：2016-07
- 稿件说明：
移动端阅览
Guomin SUN, Maosong CHENG, Zhimin DAI. Preliminary analysis of fuel management for a small modular molten salt fast reactor[J]. Nuclear techniques, 2016, 39(7): 070603
DOI：

Guomin SUN, Maosong CHENG, Zhimin DAI. Preliminary analysis of fuel management for a small modular molten salt fast reactor[J]. Nuclear techniques, 2016, 39(7): 070603 DOI： 10.11889/j.0253-3219.2016.hjs.39.070603.

摘要

由于燃料随熔盐流动的特性以及可以进行在线添料与处理的特点，液态燃料熔盐堆的燃耗分析与燃料管理和传统固态燃料反应堆有很大不同，需要针对液态燃料熔盐堆的特点重新开发燃耗分析与管理程序。本文针对液态燃料熔盐堆的熔盐流动特性以及在线添料与处理功能，基于MCNP5和ORIGEN2.1燃耗耦合程序，开发了适用于液态燃料熔盐堆的燃料管理程序，并应用于一种小型模块化熔盐快堆的燃料管理和分析，对比分析了5种不同运行方案以及分批在线添料情况下，运行30年期间

eff

的变化情况及重要核素的演化情况。计算结果表明，采用不断调整添料率的连续在线添料运行方案和固定批量添料的运行方案，都可以让小型模块化熔盐快堆维持运行在一个较小的

eff

波动范围之内。开发的燃料管理程序适用于液态燃料熔盐堆的研究，同时可以为液态燃料熔盐堆的设计及燃耗管理和分析提供有价值的参考。

Abstract

Background:

In a liquid fuel molten salt reactor

the fuel circulates in the primary loop

and it can be reprocessed and refueled online

ther

efore the fuel management of liquid fuel molten salt reactor differs from conventional solid fuel nuclear reactors.

Purpose:

This study aims to develope a new fuel management and burnup analysis code that considers the flow effect of molten salt and the online refueling and reprocessing for a small modular molten salt fast reactor.

Methods:

Based on the MCNP5 and ORIGEN2.1 code

a new fuel management code is developed to suit for liquid fuel molten salt reactor. Five operation modes for both the continuous online refueling and batch online refueling are studied. The

eff

and the burnup of some important nuclides during 30-a continuous operation with batch online refueling are analyzed.

Results:

The simulation results show that the small modular molten salt fast reactor can be operated within a small

eff

fluctuation both under the continuous refueling scheme with variable feed rating and under the constant batch refueling scheme.

Conclusion:

The newly developed code can be applied to the research of liquid fuel molten salt reactors. And the presented schemes provide a reference for liquid fuel molten salt reactor design and fuel management analysis.

关键词

Keywords

references

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